<SEC-DOCUMENT>0001171520-21-000414.txt : 20211013
<SEC-HEADER>0001171520-21-000414.hdr.sgml : 20211013
<ACCEPTANCE-DATETIME>20211013161818
ACCESSION NUMBER:		0001171520-21-000414
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		55
CONFORMED PERIOD OF REPORT:	20210831
FILED AS OF DATE:		20211013
DATE AS OF CHANGE:		20211013

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SONO TEK CORP
		CENTRAL INDEX KEY:			0000806172
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				141568099
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			0228

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40763
		FILM NUMBER:		211321395

	BUSINESS ADDRESS:	
		STREET 1:		2012 RT 9W BLDG 3
		CITY:			MILTON
		STATE:			NY
		ZIP:			12547
		BUSINESS PHONE:		8457952020

	MAIL ADDRESS:	
		STREET 1:		2012 RT. 9W, BLDG. 3,
		CITY:			MILTON
		STATE:			NY
		ZIP:			12547
</SEC-HEADER>
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<TYPE>10-Q
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<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">UNITED STATES</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">SECURITIES AND EXCHANGE COMMISSION</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">WASHINGTON, D.C. 20549</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">FORM <span id="xdx_90A_edei--DocumentType_c20210301__20210831_zKcdcwIZSXE9"><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" name="dei:DocumentType">10-Q</ix:nonNumeric></span></p>

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<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">OR</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

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<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman,serif; margin: 0; text-align: center"><b><img src="sonotek-logo.jpg" alt="" style="height: 0.56in; width: 6.5in" /></b></p>

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<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">(Exact name of registrant as specified in its charter)</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">(Address of Principal Executive Offices) (Zip Code)</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<p style="font: 9pt Cambria,serif; margin: 0 0 6pt">Securities Registered Pursuant to Section 12(b) of the Act: </p>

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  <tr style="vertical-align: top">
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<p style="font: 9pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 9pt Cambria,serif; margin: 0">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 id="xdx_90D_edei--EntityCurrentReportingStatus_c20210301__20210831_z6qscm6dDqVa"><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" name="dei:EntityCurrentReportingStatus">Yes</ix:nonNumeric></span>&#160; <span style="font-family: Segoe UI Symbol,sans-serif">&#9745;</span>
&#160;&#160;&#160;No&#160; <span style="font-family: Segoe UI Symbol,sans-serif">&#9744;</span></p>

<p style="font: 9pt Cambria,serif; margin: 0 9.9pt 0 0">&#160;</p>

<p style="font: 9pt Cambria,serif; margin: 0 9.9pt 0 0">Indicate by checkmark whether the registrant has submitted electronically and
posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation
S-T (section 229.405 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 style="font-family: Segoe UI Symbol,sans-serif">&#9745;</span> &#160;<span id="xdx_903_edei--EntityInteractiveDataCurrent_c20210301__20210831_z8ATFNC1DlPk"><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" name="dei:EntityInteractiveDataCurrent">Yes</ix:nonNumeric></span>&#160;&#160;&#160;&#160;<span style="font-family: Segoe UI Symbol,sans-serif">&#9744;</span>
&#160;No</p>

<p style="font: 9pt Cambria,serif; margin: 0 9.9pt 0 0">&#160;</p>

<p style="font: 9pt Cambria,serif; margin: 0 0 6pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated
filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of &#8220;large accelerated
filer,&#8221; &#8220;accelerated filer&#8221;, &#8220;smaller reporting company&#8221;, and &#8220;emerging growth company&#8221; in Rule
12b-2 of the Exchange Act.</p>

<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse; font-size: 10pt">
  <tr style="vertical-align: top">
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  <tr style="vertical-align: top">
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<p style="font: 9pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 9pt Cambria,serif; margin: 0">If an emerging growth company, indicate by check mark if the registrant has elected not
to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section
13(a) of the Exchange Act. <span style="font-family: Segoe UI Symbol,sans-serif">&#9744;</span></p>

<p style="font: 9pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 9pt Cambria,serif; margin: 0">Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2
of the Exchange Act). YES&#160;<span style="font-family: Segoe UI Symbol,sans-serif">&#9744;</span>&#160;&#160;&#160;&#160;<span id="xdx_90B_edei--EntityShellCompany_c20210301__20210831_zgRjYUTr25Gl"><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" format="ixt:booleanfalse" name="dei:EntityShellCompany">NO</ix:nonNumeric></span>&#160;<span style="font-family: Segoe UI Symbol,sans-serif">&#9745;</span></p>

<p style="font: 9pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 9pt Cambria,serif; margin: 0; text-align: center">APPLICABLE ONLY TO CORPORATE ISSUERS:</p>

<p style="font: 9pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 9pt Cambria,serif; margin: 0">Indicate the number of shares outstanding of each of the issuer's classes of common stock,
as of the latest practicable date:</p>

<p style="font: 9pt Cambria,serif; margin: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse; font-size: 10pt">
  <tr style="vertical-align: top">
    <td style="width: 62%; font-family: Cambria,serif">&#160;</td>
    <td style="border-bottom: black 1pt solid; width: 38%; padding-left: 5.4pt; font-family: Cambria,serif; text-align: center"><span style="font-size: 8pt"><b>Outstanding
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  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif"><span style="font-size: 9pt"><span style="text-decoration: underline">Class</span></span></td>
    <td style="padding-left: 5.4pt; font-family: Cambria,serif; text-align: center">&#160;</td></tr>
  <tr style="vertical-align: top">
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  </table>
<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>&#160;</b></p>


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    <!-- Field: /Page -->

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>SONO-TEK CORPORATION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>INDEX</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse; font-size: 10pt">
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">Page</td></tr>
  <tr style="vertical-align: top">
    <td style="width: 92%; font-family: Cambria,serif">Part I - Financial Information</td>
    <td style="width: 8%; font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif"><a href="#item1">Item 1 &#8211; Condensed Consolidated Financial Statements</a>:</td>
    <td style="font-family: Cambria,serif; text-align: right">1 - 4</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in"><a href="#balancesheets">Condensed Consolidated Balance Sheets &#8211; August 31, 2021 (Unaudited) and February 28, 2021</a></td>
    <td style="font-family: Cambria,serif; text-align: right">1</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in"><a href="#soi">Condensed Consolidated Statements of Income &#8211; Six and Three Months Ended August 31, 2021 and 2020 (Unaudited)</a></td>
    <td style="font-family: Cambria,serif; text-align: right">2</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in"><a href="#equity">Condensed Consolidated Statements of Stockholders&#8217; Equity &#8211; Six and Three Months Ended August 31, 2021 and 2020 (Unaudited)</a></td>
    <td style="font-family: Cambria,serif; text-align: right">3</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in"><a href="#cashflows">Condensed Consolidated Statements of Cash Flows &#8211; Six Months Ended August 31, 2021 and 2020 (Unaudited)</a></td>
    <td style="font-family: Cambria,serif; text-align: right"><span style="font: 11pt Calibri,sans-serif">4</span></td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in"><a href="#notes">Notes to Unaudited Condensed Consolidated Financial Statements</a></td>
    <td style="font-family: Cambria,serif; text-align: right"><span style="font-family: Calibri,sans-serif">5 </span>- 11</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="padding-left: 0.25in; font-family: Cambria,serif; text-indent: -0.25in"><a href="#item2">Item 2 - Management's Discussion and Analysis of Financial Condition and Results of Operations</a></td>
    <td style="font-family: Cambria,serif; text-align: right"><span style="font-family: Calibri,sans-serif">12 </span>&#8211;19</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif"><a href="#item3">Item 3 &#8211; Quantitative and Qualitative Disclosures about Market Risk</a></td>
    <td style="font-family: Cambria,serif; text-align: right">19</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif"><a href="#item4">Item 4 &#8211; Controls and Procedures</a></td>
    <td style="font-family: Cambria,serif; text-align: right">19</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif"><a href="#partII">Part II - Other Information</a></td>
    <td style="font-family: Cambria,serif; text-align: right">20</td></tr>
  <tr style="vertical-align: top; background-color: white">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif"><a href="#sigs">Signatures and Certifications</a></td>
    <td style="font-family: Cambria,serif; text-align: right">21</td></tr>
  </table>
<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>


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    <div style="border-bottom: rgb(98,145,178) 2pt solid; margin-top: 12pt; margin-bottom: 6pt; padding-bottom: 2pt"><p style="margin: 0pt">&#160;</p></div>
    <div style="break-before: page; margin-top: 6pt; margin-bottom: 12pt">&#160;</div>
    <!-- Field: /Page -->



<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="item1"></span><span id="balancesheets"></span></p><p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>SONO-TEK CORPORATION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>CONDENSED CONSOLIDATED BALANCE SHEETS</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" id="xdx_306_111_z6qmjTeF1YWb" summary="xdx: Statement - Condensed Consolidated Balance Sheets" style="border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: bold 9pt Cambria,serif">&#160;</td>
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  <tr style="vertical-align: bottom">
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    <td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center">(Unaudited)</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr id="xdx_409_eus-gaap--AssetsAbstract_iB_z0Aq0pOKld0h" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: bold 10pt Cambria,serif">ASSETS</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40C_eus-gaap--AssetsCurrentAbstract_iB_ztadmX0rDHhc" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
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    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.2in">Accounts receivable (less allowance of $<span id="xdx_904_eus-gaap--AllowanceForDoubtfulAccountsReceivableCurrent_iI_c20210831_zRcD7XA8APA9" title="Allowance for doubtful accounts receivable"><span id="xdx_904_eus-gaap--AllowanceForDoubtfulAccountsReceivableCurrent_iI_c20210228_zcFVrMfoCvma"><ix:nonFraction name="us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD"><ix:nonFraction name="us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">56,123</ix:nonFraction></ix:nonFraction></span></span>)</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:AccountsReceivableNetCurrent" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,482,334</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
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  <tr id="xdx_40F_eus-gaap--InventoryNet_i01I_maCzgyN_maPEAOAz73L_z7Kl3KvmasAb" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.2in">Inventories, net</td><td style="font: 10pt Cambria,serif">&#160;</td>
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:InventoryNet" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">2,611,106</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40B_eus-gaap--PrepaidExpenseAndOtherAssetsCurrent_i01I_maCzgyN_mtPEAOAz73L_zsvmRUcuKHRh" style="vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:PrepaidExpenseAndOtherAssetsCurrent" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">124,214</ix:nonFraction></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr id="xdx_409_eus-gaap--AssetsCurrent_iTI_mtCzgyN_maCzHU0_z2xEtB5gqA03" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_400_eus-gaap--Land_iI_maCzHU0_zrIkhxrQRbD4" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:Land" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">250,000</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_401_ecustom--BuildingsNet_iI_maCzHU0_zs8bbFVQg8Od" style="vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="sotk:BuildingsNet" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,525,958</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="sotk:BuildingsNet" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,575,135</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40B_ecustom--EquipmentFurnishingsLeaseholdImprovementsNet_iI_maCzHU0_zHMPck2PN085" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left">Equipment, furnishings and building improvements, net</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="sotk:EquipmentFurnishingsLeaseholdImprovementsNet" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,057,084</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="sotk:EquipmentFurnishingsLeaseholdImprovementsNet" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,075,190</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_407_eus-gaap--IntangibleAssetsNetExcludingGoodwill_iI_maCzHU0_zk0YvvtItXGe" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left">Intangible assets, net</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:IntangibleAssetsNetExcludingGoodwill" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">85,736</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:IntangibleAssetsNetExcludingGoodwill" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">95,456</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40C_eus-gaap--DeferredIncomeTaxAssetsNet_iI_maCzHU0_zz6lR2X0Kgyb" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt">Deferred tax asset</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:DeferredIncomeTaxAssetsNet" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">236,120</ix:nonFraction></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:DeferredIncomeTaxAssetsNet" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">259,838</ix:nonFraction></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_401_eus-gaap--Assets_iTI_mtCzHU0_z9Ze73832Fwi" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 2.5pt">TOTAL ASSETS</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:Assets" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">17,382,531</ix:nonFraction></td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:Assets" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">16,423,391</ix:nonFraction></td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_407_eus-gaap--LiabilitiesAndStockholdersEquityAbstract_iB_zLsTt8ZDTpii" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: bold 10pt Cambria,serif; text-align: left">LIABILITIES AND STOCKHOLDERS&#8217; EQUITY</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_406_eus-gaap--LiabilitiesCurrentAbstract_iB_zIN4YBwijrn3" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left">Current Liabilities:</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_403_eus-gaap--AccountsPayableCurrent_i01I_maCzzct_z8XW2uWgI6ic" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.2in">Accounts payable</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">$</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:AccountsPayableCurrent" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,080,255</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">$</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:AccountsPayableCurrent" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,294,483</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_403_eus-gaap--AccruedLiabilitiesCurrent_i01I_maCzzct_zQgycyoCtOu6" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.2in">Accrued expenses</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:AccruedLiabilitiesCurrent" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,398,318</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:AccruedLiabilitiesCurrent" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,750,916</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40C_eus-gaap--ContractWithCustomerLiabilityCurrent_i01I_maCzzct_zK7i2hFGTOqb" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.2in">Customer deposits</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityCurrent" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,916,784</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityCurrent" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,166,541</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_403_eus-gaap--AccruedIncomeTaxesCurrent_i01I_maCzzct_z9daCg8qEK8d" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt; padding-left: 0.2in">Income taxes payable</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:AccruedIncomeTaxesCurrent" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">202,188</ix:nonFraction></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:AccruedIncomeTaxesCurrent" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">53,567</ix:nonFraction></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td></tr>
  <tr id="xdx_400_eus-gaap--LiabilitiesCurrent_iTI_mtCzzct_maCzkPb_zC73dKyi9QS" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.5in">Total current liabilities</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:LiabilitiesCurrent" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">4,597,545</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:LiabilitiesCurrent" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">4,265,507</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
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  <tr id="xdx_406_eus-gaap--Liabilities_iTI_mtCzkPb_maCztkU_ztppYEEZzvZk" style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
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  <tr id="xdx_407_eus-gaap--AdditionalPaidInCapital_i01I_maCzFrk_zXV8cm5zpFi2" style="vertical-align: bottom; background-color: White">
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<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">See notes to unaudited condensed consolidated financial statements.</p>


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<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="soi"></span></p><p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>SONO-TEK CORPORATION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>CONDENSED CONSOLIDATED STATEMENTS OF INCOME</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>(Unaudited)</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<table cellpadding="0" cellspacing="0" id="xdx_305_113_zAMl1brvA68g" summary="xdx: Statement - Condensed Consolidated Statements of Income" style="border-collapse: collapse; width: 100%">
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    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td colspan="2" id="xdx_49F_20210301__20210831_zSTSjcIXCQZ" style="font: 10pt Cambria,serif; text-align: center">&#160;</td><td style="font: 10pt Cambria,serif; text-align: center">&#160;</td><td style="font: 10pt Cambria,serif; text-align: center">&#160;</td>
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<tr style="vertical-align: bottom">
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    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
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    <td colspan="2" style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
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  <tr id="xdx_40A_eus-gaap--GrossProfit_iT_mtCzxXc_maCzjF8_zw0j7smFACve" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
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  <tr id="xdx_40F_eus-gaap--OperatingExpensesAbstract_iB_zJeX4pfhOrwc" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left">Operating Expenses</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
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  <tr id="xdx_40C_eus-gaap--ResearchAndDevelopmentExpense_i01_maCzxaS_zJvVTnkIKn7h" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_401_eus-gaap--SellingAndMarketingExpense_i01_maCzxaS_z7bmxZPGD4Sa" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.2in">Marketing and selling expenses</td><td style="font: 10pt Cambria,serif">&#160;</td>
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  <tr id="xdx_407_eus-gaap--GeneralAndAdministrativeExpense_i01_maCzxaS_zoLqxBpRtPi7" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_40C_eus-gaap--OperatingExpenses_iT_mtCzxaS_msCzjF8_z5d6nS5E4JL8" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
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  <tr id="xdx_40D_eus-gaap--OperatingIncomeLoss_iT_mtCzjF8_maCzpGq_zT0R2pzQrbRc" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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  <tr id="xdx_402_eus-gaap--InterestExpense_iN_di_msCzpGq_z7Cqqj63Uosa" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">See notes to unaudited condensed consolidated financial statements.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>


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<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="equity"></span></p><p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>SONO-TEK CORPORATION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS&#8217; EQUITY</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b><span style="text-decoration: underline">Three and Six Months Ended August 31, 2021</span></b></p>

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  <tr id="xdx_43D_c20200301__20200531_eus-gaap--StockholdersEquity_iS_zt2UN7SFZahe" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 9pt Cambria,serif; width: 35%">Balance, February 29, 2020</td><td style="font: 9pt Cambria,serif; width: 2%">&#160;</td>
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  <tr id="xdx_401_eus-gaap--AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_zZePalCZyuC" style="vertical-align: bottom; background-color: White">
    <td style="font: 9pt Cambria,serif; text-align: left">Stock based compensation expense</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif">&#160;</td>
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif">&#160;</td>
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  <tr id="xdx_40B_eus-gaap--StockIssuedDuringPeriodValueStockOptionsExercised_zskt9qiOoox7" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 9pt Cambria,serif">Cashless exercise of stock options</td><td style="font: 9pt Cambria,serif">&#160;</td>
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0313">&#8212;</span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_406_eus-gaap--NetIncomeLoss_zdj1LD4gVjHg" style="vertical-align: bottom; background-color: White">
    <td style="font: 9pt Cambria,serif; text-align: left; padding-bottom: 1pt">Net Income</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:NetIncomeLoss" contextRef="From2020-03-012020-05-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">167,928</ix:nonFraction></td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td></tr>
  <tr id="xdx_43E_c20200601__20200831_eus-gaap--StockholdersEquity_iS_zBhrIszwEK9f" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 9pt Cambria,serif">Balance, May 31, 2020 (Unaudited)</td><td style="font: 9pt Cambria,serif">&#160;</td>
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    <td style="font: 9pt Cambria,serif; text-align: left">$</td><td style="font: 9pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:StockholdersEquity" contextRef="AsOf2020-05-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">9,958,432</ix:nonFraction></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40B_eus-gaap--AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_zvd8txG8347h" style="vertical-align: bottom; background-color: White">
    <td style="font: 9pt Cambria,serif; text-align: left">Stock based compensation expense</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" contextRef="From2020-06-012020-08-31_us-gaap_AdditionalPaidInCapitalMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">7,906</ix:nonFraction></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" contextRef="From2020-06-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">7,906</ix:nonFraction></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_405_eus-gaap--StockIssuedDuringPeriodValueStockOptionsExercised_zljHoke3w4Y2" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 9pt Cambria,serif">Cashless exercise of stock options</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td id="xdx_98D_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_c20200601__20200831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zHEolxPJBPd9" style="font: 9pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised" contextRef="From2020-06-012020-08-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">12,950</ix:nonFraction></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised" contextRef="From2020-06-012020-08-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">130</ix:nonFraction></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised" contextRef="From2020-06-012020-08-31_us-gaap_AdditionalPaidInCapitalMember" format="ixt:numdotdecimal" decimals="0" sign="-" unitRef="USD">130</ix:nonFraction></td><td style="font: 9pt Cambria,serif; text-align: left">)</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0335">&#8212;</span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_401_eus-gaap--NetIncomeLoss_z8Kn99Ur2Rsb" style="vertical-align: bottom; background-color: White">
    <td style="font: 9pt Cambria,serif; text-align: left; padding-bottom: 1pt">Net Income</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:NetIncomeLoss" contextRef="From2020-06-012020-08-31_us-gaap_RetainedEarningsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">177,763</ix:nonFraction></td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:NetIncomeLoss" contextRef="From2020-06-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">177,763</ix:nonFraction></td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td></tr>
  <tr id="xdx_43A_c20200601__20200831_eus-gaap--StockholdersEquity_iE_zpccrsiD2qu9" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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    <td style="border-bottom: Black 2.5pt double; font: 9pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 9pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:StockholdersEquity" contextRef="AsOf2020-08-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">154,360</ix:nonFraction></td><td style="font: 9pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
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<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">See notes to unaudited condensed consolidated financial statements.</p>


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<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="cashflows"></span></p><p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>SONO-TEK CORPORATION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>(Unaudited)</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<table cellpadding="0" cellspacing="0" id="xdx_309_112_zhWe2Q30XEOl" summary="xdx: Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)" style="border-collapse: collapse; width: 100%">
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    <td colspan="6" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center">Six&#160;Months&#160;Ended<br /> August 31,</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td></tr>
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    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr id="xdx_40A_eus-gaap--NetCashProvidedByUsedInOperatingActivitiesAbstract_iB_zsU48RBfKOu3" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_401_eus-gaap--NetIncomeLoss_i01_maCzW70_zpEtn5IckCwl" style="vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_408_eus-gaap--DepreciationDepletionAndAmortization_i01_maCzW70_zpAGImNhCt6f" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.4in">Depreciation and amortization</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:DepreciationDepletionAndAmortization" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">224,233</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:DepreciationDepletionAndAmortization" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">214,280</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40B_eus-gaap--StockOptionPlanExpense_i01_maCzW70_zrZkNtdHOTM6" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.4in">Stock based compensation expense</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:StockOptionPlanExpense" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">40,717</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:StockOptionPlanExpense" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">16,003</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_401_eus-gaap--InventoryLIFOReservePeriodCharge_i01_maCzW70_zGHdhltx1hUe" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.4in">Inventory reserve</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:InventoryLIFOReservePeriodCharge" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" sign="-" unitRef="USD">24,919</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:InventoryLIFOReservePeriodCharge" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">36,000</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_403_eus-gaap--DebtInstrumentDecreaseForgiveness_i01N_di_zoqb1R5lofi8" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.4in">Paycheck Protection Program Loan Forgiveness</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:DebtInstrumentDecreaseForgiveness" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,005,372</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0368">&#8212;</span></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_407_eus-gaap--DeferredIncomeTaxExpenseBenefit_i01_maCzW70_zaIkhG3v5tMa" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.4in">Deferred tax expense</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:DeferredIncomeTaxExpenseBenefit" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,167</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0371">&#8212;</span></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_408_eus-gaap--IncreaseDecreaseInOperatingAssetsAbstract_i01B_zIeyfnyvanU7" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.4in">Decrease (Increase) in:</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_402_eus-gaap--IncreaseDecreaseInAccountsReceivable_i02N_di_msCzW70_zWy8xt3GJQGc" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.6in">Accounts receivable</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:IncreaseDecreaseInAccountsReceivable" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" sign="-" unitRef="USD">275,468</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInAccountsReceivable" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">418,947</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td></tr>
  <tr id="xdx_40B_eus-gaap--IncreaseDecreaseInInventories_i02N_di_msCzW70_z7q5NiWjN2Ja" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; padding-left: 0.6in">Inventories</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInInventories" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">287,830</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInInventories" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">116,157</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td></tr>
  <tr id="xdx_401_eus-gaap--IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_i02N_di_msCzW70_zVpUPnPiUPBi" style="vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" sign="-" unitRef="USD">27,101</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" sign="-" unitRef="USD">58,863</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40F_eus-gaap--IncreaseDecreaseInOperatingAssetsAbstract_i01B_z7YMxLXm6cKl" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.4in">(Decrease) Increase in:</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40A_eus-gaap--IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_i02_maCzW70_z4cCeUN4bXS3" style="vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" sign="-" unitRef="USD">563,094</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" sign="-" unitRef="USD">250,099</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td></tr>
  <tr id="xdx_405_eus-gaap--IncreaseDecreaseInContractWithCustomerLiability_i02_maCzW70_zwVfm3yPYfo9" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.6in">Customer deposits</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:IncreaseDecreaseInContractWithCustomerLiability" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">750,243</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInContractWithCustomerLiability" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" sign="-" unitRef="USD">660,588</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td></tr>
  <tr id="xdx_401_eus-gaap--IncreaseDecreaseInAccruedTaxesPayable_i02_maCzW70_zh92a973nPh7" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt; padding-left: 0.6in">Income taxes payable</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInAccruedTaxesPayable" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" sign="-" unitRef="USD">6,878</ix:nonFraction></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">)</td></tr>
  <tr id="xdx_401_eus-gaap--NetCashProvidedByUsedInOperatingActivities_i02T_mtCzW70_maCzG4i_zd8NuhV2lNg4" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_403_eus-gaap--NetCashProvidedByUsedInInvestingActivitiesAbstract_iB_zls50OqvX96e" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: bold 10pt Cambria,serif; text-align: left">CASH FLOWS FROM INVESTING ACTIVITIES:</td><td style="font: 10pt Cambria,serif">&#160;</td>
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40E_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_i01N_di_msCzJpY_zslUF7fjTJX7" style="vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:PaymentsToAcquirePropertyPlantAndEquipment" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">147,230</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">(<ix:nonFraction name="us-gaap:PaymentsToAcquirePropertyPlantAndEquipment" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">290,347</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">)</td></tr>
  <tr id="xdx_400_ecustom--ProceedsFromCapitalExpenditureGrant_i01_zln6BtRkSEg8" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.2in">Capital expenditure grant proceeds</td><td style="font: 10pt Cambria,serif">&#160;</td>
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="sotk:ProceedsFromCapitalExpenditureGrant" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">100,000</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40D_eus-gaap--ProceedsFromSaleAndMaturityOfMarketableSecurities_i01_maCzGpf_maNCPBUzaEY_zM5CPuUO00p8" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_40E_eus-gaap--NetCashProvidedByUsedInInvestingActivities_i01T_mtCzJpY_maCzG4i_zTUZtAgDVDef" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt; padding-left: 0.4in">Net Cash Provided by Investing Activities</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_408_eus-gaap--NetCashProvidedByUsedInFinancingActivitiesAbstract_iB_z2BxpTaZy2Qc" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: bold 10pt Cambria,serif; text-align: left">CASH FLOWS FROM FINANCING ACTIVITIES:</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_404_eus-gaap--ProceedsFromNotesPayable_i01_maCzxZ3_maNCPBUzORZ_z7E9ob33fee4" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-left: 0.2in">Proceeds from note payable</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0418">&#8212;</span></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:ProceedsFromNotesPayable" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,001,640</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_401_eus-gaap--RepaymentsOfLongTermDebt_i01N_pp0p0_di_msNCPBUzORZ_z9kigtoK2DFh" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt; padding-left: 0.2in">Repayment of long term debt</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0421">&#8212;</span></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr id="xdx_403_eus-gaap--NetCashProvidedByUsedInFinancingActivities_i01T_mtCzv0L_maCzG4i_zeJVE0J7uGa3" style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt; padding-left: 0.4in">Net Cash Provided by Financing Activities</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0424">&#8212;</span></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_405_eus-gaap--CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_iT_mtCzG4i_z92hsjF30wXf" style="vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><ix:nonFraction name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">312,060</ix:nonFraction></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40F_eus-gaap--CashAndCashEquivalentsAbstract_iB_zy8gnl1PLyq3" style="vertical-align: bottom; background-color: White">
    <td style="font: bold 10pt Cambria,serif; text-align: left">CASH AND CASH EQUIVALENTS</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_404_eus-gaap--CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_i01S_zqXIPW0LALMb" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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  <tr id="xdx_40F_eus-gaap--CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_i01E_zGWfUmLg1Cjc" style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_40C_eus-gaap--SupplementalCashFlowInformationAbstract_iB_zXihrFpPlq66" style="vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right">&#160;</td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr id="xdx_409_eus-gaap--InterestPaidNet_i01_zFY1KN4Ofr6b" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 2.5pt; padding-left: 0.2in">Interest paid</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
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<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">See notes to unaudited condensed consolidated financial statements.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center">&#160;</p>


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<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="notes"></span></p><p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>SONO-TEK CORPORATION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>SIX MONTHS ENDED AUGUST 31, 2021 and 2020</b></p>

<p style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.5in"><b>&#160;</b></p>

<ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock"><p id="xdx_80D_eus-gaap--BusinessDescriptionAndBasisOfPresentationTextBlock_zqzvYDLKHhLi" style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.5in"><b>NOTE 1: BUSINESS DESCRIPTION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Sono-Tek Corporation (the &#8220;Company&#8221;, &#8220;Sono-Tek&#8221;, &#8220;We&#8221;
or &#8220;Our&#8221;) was incorporated in New York on March 21, 1975. We are the world leader in the design and manufacture of ultrasonic
coating systems for applying precise, thin film coatings to add functional properties, protect or strengthen surfaces on parts and components
for the microelectronics/electronics, alternative energy, medical, industrial and emerging research &amp; development/other markets. We
design and manufacture custom-engineered ultrasonic coating systems incorporating our patented technology, in combination with strong
applications engineering knowledge, to assist our customers in achieving their desired coating solutions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The accompanying unaudited condensed consolidated financial statements have been prepared
in accordance with accounting principles generally accepted in the United States (&#8220;GAAP&#8221;) for interim financial information
with the instructions for Form 10-Q and Article 8 of Regulation S-X. Accordingly, the unaudited condensed consolidated financial statements
do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of the Company&#8217;s
management, all adjustments considered necessary for a fair presentation (consisting of normal recurring adjustments) have been included.
The results for the interim periods are not necessarily indicative of what the results will be for the fiscal year. The accompanying unaudited
condensed consolidated financial statements should be read in conjunction with the audited Consolidated Financial Statements as of and
for the fiscal year ended February 28, 2021 (&#8220;fiscal year 2021&#8221;) contained in the Company&#8217;s 2021 Annual Report on Form
10-K filed with the SEC on May 28, 2021. The Company&#8217;s current fiscal year ends on February 28, 2022 (&#8220;fiscal 2022&#8221;).</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:SignificantAccountingPoliciesTextBlock"><p id="xdx_80F_eus-gaap--SignificantAccountingPoliciesTextBlock_zuGuIUxB95kh" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 2: SIGNIFICANT ACCOUNTING POLICIES</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ReceivablesPolicyTextBlock"><p id="xdx_849_eus-gaap--ReceivablesPolicyTextBlock_zo2TpfuLlq9k" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86E_zUUitfUKvdD9">Accounts Receivable, net</span> - </i></b>In the normal course of business, the Company
extends credit to customers. Accounts receivable, less the allowance for doubtful accounts, reflect the net realizable value of receivables
and approximate fair value. The Company records a bad debt expense/allowance based on management&#8217;s estimate of uncollectible accounts.
All outstanding accounts receivable accounts are reviewed for collectability on an individual basis.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:CashAndCashEquivalentsPolicyTextBlock"><p id="xdx_84F_eus-gaap--CashAndCashEquivalentsPolicyTextBlock_zEer2syZlCb7" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86F_z5aNWy93qxd4">Cash and Cash Equivalents</span></i></b><i> - </i>Cash and cash equivalents consist of money
market mutual funds, short term commercial paper and short-term certificates of deposit with original maturities of 90 days or less.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ConsolidationPolicyTextBlock"><p id="xdx_84A_eus-gaap--ConsolidationPolicyTextBlock_zX18u4il7nbi" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86C_z5wdjHOB7VG8">Consolidation</span></i></b> - The accompanying unaudited condensed consolidated financial
statements of the Company include the accounts of the Company and its wholly owned subsidiary, Sono-Tek Industrial Park, LLC (&#8220;SIP&#8221;)
in conformity with generally accepted accounting principles in the United States (&#8220;GAAP&#8221;). SIP operates as a real estate holding
company for the Company&#8217;s real estate operations. All intercompany accounts and transactions have been eliminated in consolidation.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:EarningsPerSharePolicyTextBlock"><p id="xdx_84E_eus-gaap--EarningsPerSharePolicyTextBlock_ziXywvQWCLhd" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_860_zwzhOFxb7lJb">Earnings Per Share</span></i></b><i> - </i>Basic earnings per share (&#8220;EPS&#8221;)
is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the
potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock
under the treasury stock method.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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and leasehold improvements are stated at cost. Depreciation of equipment and furnishings is computed by use of the <span id="xdx_90E_eus-gaap--PropertyPlantAndEquipmentDepreciationMethods_c20210301__20210831__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--EquipmentAndFurnishingsMember_z1pCcsmhNDo4" title="Depreciation methods"><ix:nonNumeric contextRef="From2021-03-012021-08-31_custom_EquipmentAndFurnishingsMember" name="us-gaap:PropertyPlantAndEquipmentDepreciationMethods">straight-line method</ix:nonNumeric></span>
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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Codification (&#8220;ASC&#8221;) 820,&#160;<i>Fair Value Measurement&#160;</i>(&#8220;ASC 820&#8221;), which establishes a framework for
measuring fair value and clarifies the definition of fair value within that framework. ASC 820 defines fair value as an exit price, which
is the price that would be received for an asset or paid to transfer a liability in the Company&#8217;s principal or most advantageous
market in an orderly transaction between market participants on the measurement date. The fair value hierarchy established in ASC 820
generally requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair
value. Observable inputs reflect the assumptions that market participants would use in pricing the asset or liability and are developed
based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the entity&#8217;s own assumptions
based on market data and the entity&#8217;s judgments about the assumptions that market participants would use in pricing the asset or
liability and are to be developed based on the best information available in the circumstances.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>


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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The carrying amounts of financial instruments reported in the accompanying unaudited condensed
consolidated financial statements for current assets and current liabilities approximate the fair value because of the immediate or short-term
maturities of the financial instruments.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The valuation hierarchy is composed of three levels. The classification within the valuation
hierarchy is based on the lowest level of input that is significant to the fair value measurement. The levels within the valuation hierarchy
are described below:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Level 1 &#8212; Assets and liabilities with unadjusted, quoted prices listed on active
market exchanges. Inputs to the fair value measurement are observable inputs, such as quoted prices in active markets for identical assets
or liabilities.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Level 2 &#8212; Inputs to the fair value measurement are determined using prices for recently
traded assets and liabilities with similar underlying terms, as well as direct or indirect observable inputs, such as interest rates and
yield curves that are observable at commonly quoted intervals.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Level 3 &#8212; Inputs to the fair value measurement are unobservable inputs, such as estimates,
assumptions, and valuation techniques when little or no market data exists for the assets or liabilities.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white">&#160;</p>

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Company were determined using the following categories at August 31, 2021 and February 28, 2021, respectively:</p>

<p style="font: 10pt Cambria,serif; margin: 0; background-color: white">&#160;</p>

<p style="font: 11pt Cambria,serif; margin: 0"><span id="xdx_8BB_z8hw9JjeSePd" style="display: none">Significant Accounting Policies - Fair values of financial assets of the Company</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></tr>
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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"><span id="xdx_90A_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228_zsfSuTSFeNK6"><ix:nonFraction name="us-gaap:MarketableSecuritiesCurrent" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">4,563,470</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
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</ix:nonNumeric><p id="xdx_8AA_zBvlSBQaWOv4" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; background-color: white">Marketable Securities include mutual funds, certificates of deposit
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31, 2021 and February 28, 2021, respectively. Mutual funds and US Treasury securities are valued using inputs observable in active markets
for identical securities and are therefore classified as Level&#160;1 and certificates of deposit are classified as Level 2 within the
Company&#8217;s fair value hierarchy.</p>

<p style="font: 10pt Cambria,serif; margin: 0; background-color: white">&#160;</p>

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liability method. Under this method, deferred income taxes are recognized for the tax consequences of &#34;temporary differences&#34;
by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts and
the tax basis of existing assets and liabilities. If it is more likely than not that some portion or all of a deferred tax asset will
not be realized, a valuation allowance is recognized. The Company uses a recognition threshold and a measurement attribute for financial
statement recognition and measurement of tax positions taken or expected to be taken in a return. For those benefits to be recognized,
a tax position must be more likely than not to be sustained upon examination by taxing authorities. As of August 31, 2021 and February
28, 2021, there were no uncertain tax positions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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deferred and charged to operations over <span id="xdx_900_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_pid_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--DomesticPatentsMember_zdW7yeL3dTPk" title="Useful life of intangible assets::XDX::P17Y"><span style="-sec-ix-hidden: xdx2ixbrl0489">seventeen</span></span> years for domestic patents and <span id="xdx_90C_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--ForeignPatentsMember_z0cbok1hctt9" title="Useful life of intangible assets::XDX::P12Y"><span style="-sec-ix-hidden: xdx2ixbrl0491">twelve</span></span> years for foreign patents. The accumulated amortization
of patents is $<span id="xdx_909_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210831_zUz2H3D5C0H2" title="Accumulated amortization of patents"><ix:nonFraction name="us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">187,206</ix:nonFraction></span> and $<span id="xdx_908_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210228_zcX4c3JSJVt"><ix:nonFraction name="us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">181,922</ix:nonFraction></span> at August 31, 2021 and February 28, 2021, respectively. Annual amortization expense of such intangible
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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value. Cost is determined using the first-in, first-out (FIFO) method for raw materials, subassemblies and work-in-progress and the specific
identification method for finished goods. Management compares the cost of inventory with the net realizable value and, if applicable,
an allowance is made for writing down the inventory to its net realizable value, if lower than cost. On an ongoing basis, inventory is
reviewed for potential write-down for estimated obsolescence or unmarketable inventory based upon forecasts for future demand and market
conditions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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being depreciated by use of the straight-line method based on an estimated useful life of forty years.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>


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<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

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value of long-lived assets, including intangible assets, when events and circumstances warrant such a review. The carrying value of a
long-lived asset is considered impaired when the anticipated undiscounted cash flow from such asset is separately identifiable and is
less than its carrying value. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair market
value of the long-lived asset. Fair market value is determined primarily using the anticipated cash flows discounted at a rate commensurate
with the risk involved. No impairment losses were identified or recorded in the six months ended August 31, 2021 and August 31, 2020 on
the Company&#8217;s long-lived assets.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported
amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated
financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those
estimates.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock"><p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zgLrZ9cCvKT5" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_863_z2JgNGcBSpwh">New Accounting Pronouncements</span> </i></b>- In December 2019, the FASB issued ASU 2019-12,
&#8220;<i>Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes</i>.&#8221; The guidance issued in this update simplifies
the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intra-period
tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for
outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or
rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The ASU became effective for
the Company on March 1, 2021 and is not expected to have a significant impact on the Company&#8217;s consolidated financial statements.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">In June 2016, the FASB issued ASU 2016-13 - Financial Instruments-Credit Losses-Measurement
of Credit Losses on Financial Instruments. Codification Improvements to Topic 326, Financial Instruments &#8211; Credit Losses, have been
released in November 2018 (2018-19), November 2019 (2019-10 and 2019-11) and a January 2020 Update (2020-02) that provided additional
guidance on this Topic. This guidance replaces the current incurred loss impairment methodology with a methodology that reflects expected
credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.
For SEC filers meeting certain criteria, the amendments in this ASU are effective for fiscal years, and interim periods within those fiscal
years, beginning after December 15, 2019. For SEC filers that meet the criteria of a smaller reporting company (including this Company)
and for non-SEC registrant public companies and other organizations, the amendments in this ASU are effective for fiscal years, and interim
periods within those fiscal years, beginning after December 15, 2022. Early adoption will be permitted for all organizations for fiscal
years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company is currently in the process of its
analysis of the impact of this guidance on its consolidated financial statements and does not expect the adoption of this guidance to
have a material impact on the Company&#8217;s consolidated financial statements.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Other than Accounting Standards Update (&#8220;ASU&#8221;) 2019-12 and ASU 2016-13 discussed
above, all new accounting pronouncements issued but not yet effective have been deemed to be not applicable to the Company. Hence, the
adoption of these new accounting pronouncements, once effective, is not expected to have an impact on the Company.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:StandardProductWarrantyPolicy"><p id="xdx_84A_eus-gaap--StandardProductWarrantyPolicy_zASScQoaHZwk" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86A_zGh1V5x70l1a">Product Warranty</span></i></b> - Expected future product warranty expense is recorded when
the product is sold.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:PriorPeriodReclassificationAdjustmentDescription"><p id="xdx_84C_eus-gaap--PriorPeriodReclassificationAdjustmentDescription_zguYGSpU7aVh" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86D_za1EjU5Sv9v9">Reclassifications</span> </i></b><i>&#8211;</i> <span style="font-family: TimesNewRomanPSMT">Where
appropriate, certain reclassifications have been made to the prior period to conform to the presentations of the current period.</span></p>

<p style="font: 10pt Calibri,sans-serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ResearchAndDevelopmentExpensePolicy"><p id="xdx_848_eus-gaap--ResearchAndDevelopmentExpensePolicy_zYo1Q0m99Eac" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_860_zTWRcZZnGjRd">Research and Product Development Expenses</span></i></b><i> - </i>Research and product development
expenses represent engineering and other expenditures incurred for developing new products, for refining the Company's existing products
and for developing systems to meet unique customer specifications for potential orders or for new industry applications and are expensed
as incurred.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:RevenueRecognitionPolicyTextBlock"><p id="xdx_845_eus-gaap--RevenueRecognitionPolicyTextBlock_z6ijbqEX8Khh" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_863_z3ZWkmKbkCLe">Revenue Recognition</span> -</i></b>&#160;The Company recognizes revenue in accordance with
ASC 606, Revenue from Contracts with Customers, the core principle of which is that an entity should recognize revenue to depict the transfer
of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to
receive in exchange for those goods or services.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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cost of sales in the accompanying unaudited consolidated statements of income.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>


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<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy"><p id="xdx_845_eus-gaap--ShareBasedCompensationOptionAndIncentivePlansPolicy_ziQEmvcL9w7g" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_866_zlVA6xexNxH1">Stock-Based Compensation</span></i></b> - The Company currently uses a Black-Scholes option
pricing model to calculate the fair value of its stock options. The fair value of each option is estimated on the date of grant based
on the Black-Scholes options-pricing model utilizing certain assumptions for a risk free interest rate; volatility; and expected remaining
lives of the awards. The Company primarily uses historical data to determine the assumptions to be used in the Black-Scholes model. The
assumptions used in calculating the fair value of share-based payment awards represent management&#8217;s best estimates, but these estimates
involve inherent uncertainties and the application of management judgment.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">ASC 718 requires the recognition of the fair value of stock compensation expense on a straight
line basis over the requite service period, based on the terms of the award in net income. The Company accounts for forfeitures as they
occur. Although every effort is made to ensure the accuracy of the Company&#8217;s estimates and assumptions, significant unanticipated
changes in those estimates, interpretations and assumptions may result in recording stock option expense that may materially impact the
Company&#8217;s financial statements for each respective reporting period.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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the transmissible and pathogenic coronavirus a global pandemic, there have been business slowdowns. The outbreak of such a communicable
disease has resulted in a widespread health crisis which has adversely affected general commercial activity and the economies and financial
markets of many countries, including the United States. As the outbreak of the disease has continued through fiscal 2022, the measures
taken by the governments of countries affected have adversely affected the Company&#8217;s business, financial condition, and results
of operations. The pandemic had a slight adverse impact on sales and the demand for products in fiscal 2021, resulting in sales that were
less than expected at the beginning of fiscal 2021. <span style="font-size: 8pt">&#160;</span></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">A majority of the Company&#8217;s sales revenue is derived primarily
from short term contracts with customers, which, primarily, are in effect for less than twelve months. Sales revenue from manufactured
equipment transferred at a single point in time accounts for a majority of the Company&#8217;s revenue.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">Sales revenue is recognized when control of the Company&#8217;s manufactured
equipment is transferred to its customers, in an amount that reflects the consideration the Company expects to receive based upon the
agreed transaction price. The Company&#8217;s performance obligations are satisfied when its customers take control of the purchased equipment,
which is based on the contract terms. Based on prior experience, the Company reasonably estimates its sales returns and warranty reserves.
Sales are presented net of discounts and allowances. Discounts and allowances are determined when a sale is negotiated. The Company does
not grant its customers or independent representatives, the ability to return equipment nor does it grant price adjustments after a sale
is complete.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">The Company does not capitalize any sales commission costs related
to the acquisition of a contract. All commissions related to a performance obligation that are satisfied at a point in time are expensed
when the customer takes control of the purchased equipment.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">The Company applies the practical expedient in paragraph ASC 606-10-50-14
and does not disclose information about remaining performance obligations that have original expected durations of one-year or less. The
Company applies the transition practical expedient in paragraph ASC 606-10-65-1(f)(3) and does not disclose the amount of the transaction
price allocated to the remaining performance obligations and an explanation of when the Company expects to recognize that amount as revenue.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">At August 31, 2021, the Company had received $<span id="xdx_90B_eus-gaap--CustomerAdvancesAndDeposits_iI_c20210831_z087rsN46pml" title="Cash deposits"><ix:nonFraction name="us-gaap:CustomerAdvancesAndDeposits" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,917,000</ix:nonFraction></span> in cash deposits,
and had issued Letters of Credit in the amount of $<span id="xdx_90D_eus-gaap--LineOfCredit_iI_c20210831_zK1kzoxKz9u7" title="Letter of credit"><ix:nonFraction name="us-gaap:LineOfCredit" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">618,000</ix:nonFraction></span> to secure these cash deposits. At August 31, 2021, <span id="xdx_908_eus-gaap--LineOfCreditFacilityCollateral_c20210301__20210831_z2M2oWUFJQD" title="Letter of credit, collateral description"><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" name="us-gaap:LineOfCreditFacilityCollateral">the Company was utilizing
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<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">At February 28, 2021, the Company had received $<span id="xdx_90B_eus-gaap--CustomerAdvancesAndDeposits_iI_c20210228_zV1knbtw1qca" title="Cash deposits"><ix:nonFraction name="us-gaap:CustomerAdvancesAndDeposits" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,167,000</ix:nonFraction></span> in cash
deposits for customer orders. During the six months ended August 31, 2021, the Company recognized $<span id="xdx_90F_eus-gaap--ContractWithCustomerLiabilityRevenueRecognized_c20210301__20210831_zJ0wKzXXTfUh" title="Revenue recognized"><ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">457,000</ix:nonFraction></span> of these deposits as revenue.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>


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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock"><p id="xdx_891_eus-gaap--ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_zgEor2rfOW4a" style="font: 10pt Cambria,serif; margin: 0; text-align: justify">The Company&#8217;s sales revenue, by product line is as follows:</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0; text-align: justify"><span id="xdx_8BC_zL0vhHtX0if8" style="display: none">Revenue Recognition - Sales Revenue by Product Line</span></p>
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_908_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_z00NRM7f4hhd" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2020-03-012020-08-31_custom_IntegratedCoatingSystemsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,849,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 9pt Cambria,serif; text-align: left">Multi-Axis Coating Systems</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_90F_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zC8CXnpi8aie" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2021-06-012021-08-31_custom_MultiAxisCoatingSystemsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,891,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</td>
    <td style="font: italic 9pt Cambria,serif; text-align: right"><span id="xdx_905_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_ztn0dxesZrw7" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2021-06-012021-08-31_custom_MultiAxisCoatingSystemsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">46</ix:nonFraction></span>%</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_907_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_z9PJsqVZNHYh" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2020-06-012020-08-31_custom_MultiAxisCoatingSystemsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,985,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</td>
    <td style="font: italic 9pt Cambria,serif; text-align: right"><span id="xdx_903_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zisdrDMARqae" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2020-06-012020-08-31_custom_MultiAxisCoatingSystemsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">57</ix:nonFraction></span>%</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_90C_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zS5vvCoi8ezf" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2021-03-012021-08-31_custom_MultiAxisCoatingSystemsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">3,970,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</td>
    <td style="font: italic 9pt Cambria,serif; text-align: right"><span id="xdx_90B_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zadecMtK7VD4" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2021-03-012021-08-31_custom_MultiAxisCoatingSystemsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">52</ix:nonFraction></span>%</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_90B_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zkJgTQFGLmdh" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2020-03-012020-08-31_custom_MultiAxisCoatingSystemsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">2,898,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</td>
    <td style="font: italic 9pt Cambria,serif; text-align: right"><span id="xdx_907_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_z0i3USpHAXx3" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2020-03-012020-08-31_custom_MultiAxisCoatingSystemsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">42</ix:nonFraction></span>%</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 9pt Cambria,serif; text-align: left">OEM Systems</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_90B_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zsV6rGPvdPQl" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2021-06-012021-08-31_custom_OemSystemsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">845,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</td>
    <td style="font: italic 9pt Cambria,serif; text-align: right"><span id="xdx_90D_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zXNYA2Nk6MKf" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2021-06-012021-08-31_custom_OemSystemsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">21</ix:nonFraction></span>%</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_90F_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zGsatdX4Dmxk" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2020-06-012020-08-31_custom_OemSystemsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">232,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</td>
    <td style="font: italic 9pt Cambria,serif; text-align: right"><span id="xdx_90B_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_z1a0Pk1BFlMe" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2020-06-012020-08-31_custom_OemSystemsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">7</ix:nonFraction></span>%</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_906_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_z0XikO4nYcb7" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2021-03-012021-08-31_custom_OemSystemsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,171,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</td>
    <td style="font: italic 9pt Cambria,serif; text-align: right"><span id="xdx_90A_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zW2N124Kko65" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2021-03-012021-08-31_custom_OemSystemsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">15</ix:nonFraction></span>%</td><td style="font: 9pt Cambria,serif">&#160;</td>
    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_90B_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_z55YZfE60BC1" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2020-03-012020-08-31_custom_OemSystemsMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">654,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</td>
    <td style="font: italic 9pt Cambria,serif; text-align: right"><span id="xdx_901_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zeOh9TSv0INb" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2020-03-012020-08-31_custom_OemSystemsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">9</ix:nonFraction></span>%</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
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    <td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"><span id="xdx_902_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_z619wL3jFB9e" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2021-03-012021-08-31_custom_OtherProductLineMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,378,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"><span id="xdx_907_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zKoK84BBsPh8" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2020-03-012020-08-31_custom_OtherProductLineMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,070,000</ix:nonFraction></span></td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-indent: 9pt">TOTAL</td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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    <td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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    <td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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    <td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  </table>


</ix:nonNumeric><p id="xdx_8A4_zNxSo6WV8lOf" style="font: 10pt Cambria,serif; margin: 0; text-align: justify"><b>&#160;</b></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:InventoryDisclosureTextBlock"><p id="xdx_808_eus-gaap--InventoryDisclosureTextBlock_z3yze6UeNO4h" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 4: INVENTORIES</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ScheduleOfInventoryCurrentTableTextBlock"><p id="xdx_89C_eus-gaap--ScheduleOfInventoryCurrentTableTextBlock_zPI09ToGMW06" style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in">Inventories consist of the following:</p>

<p style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><span id="xdx_8BE_zh976H9pIou6" style="display: none">Inventories - Schedule of Inventory, Current</span></p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold">&#160;</td>
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  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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  <tr id="xdx_40E_eus-gaap--InventoryRawMaterials_iI_maIGzQr1_zPjaZl0WCEn1" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="width: 72%; text-align: left">Raw materials and subassemblies</td><td style="width: 2%">&#160;</td>
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  <tr id="xdx_40F_eus-gaap--InventoryFinishedGoods_iI_maIGzQr1_z16D2d3FgNZ5" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Finished goods</td><td>&#160;</td>
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  <tr id="xdx_403_eus-gaap--InventoryWorkInProcess_iI_maIGzQr1_znLuWNVTUwNc" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="text-align: left; padding-bottom: 1pt">Work in process</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:InventoryWorkInProcess" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,303,140</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:InventoryWorkInProcess" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,027,010</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
  <tr id="xdx_40D_eus-gaap--InventoryGross_iTI_mtIGzQr1_maINzET9_zUYZbSlxno8k" style="vertical-align: bottom; background-color: White">
    <td>Total</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:InventoryGross" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">3,183,216</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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  <tr id="xdx_405_eus-gaap--InventoryValuationReserves_iNI_di_msINzET9_znx5CCYf14Ch" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="text-align: left; padding-bottom: 1pt">Less: Allowance</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:InventoryValuationReserves" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">259,361</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:InventoryValuationReserves" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">284,280</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
  <tr id="xdx_40F_eus-gaap--InventoryNet_iTI_mtINzET9_zjdxdowX6jsk" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 2.5pt">Net inventories</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right"><ix:nonFraction name="us-gaap:InventoryNet" contextRef="AsOf2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">2,923,855</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right"><ix:nonFraction name="us-gaap:InventoryNet" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">2,611,106</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>


</ix:nonNumeric><p id="xdx_8A9_zxyefzAbRJri" style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:StockholdersEquityNoteDisclosureTextBlock"><p id="xdx_80B_eus-gaap--StockholdersEquityNoteDisclosureTextBlock_zjrz50iBnvw5" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 5: STOCK OPTIONS</b></p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">Under the 2013 Stock Incentive Plan (&#34;2013 Plan&#34;), options can be granted
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common stock. Under the 2013 Plan options expire <span id="xdx_900_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_pid_dtxL_c20210301__20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_zmI9lyzeLH4e" title="Options, expiration period::XDX::P10Y"><span style="-sec-ix-hidden: xdx2ixbrl0654">ten years</span></span> after the date of grant. As of August 31, 2021, there were <span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_zCeCEPlHXsjb" title="Stock options, outstanding"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" contextRef="AsOf2021-08-31_custom_StockIncentivePlan2013Member" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">442,625</ix:nonFraction></span> options
outstanding under the 2013 Plan, of which <span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_c20210301__20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_z19VcYZQZJVf" title="Stock options, vested"><ix:nonFraction name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" contextRef="From2021-03-012021-08-31_custom_StockIncentivePlan2013Member" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">306,500</ix:nonFraction></span> are vested.</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">Under the 2003 Stock Incentive Plan, as amended (&#34;2003 Plan&#34;), until
May 2013, options were available to be granted to officers, directors, consultants and employees of the Company and its subsidiaries to
purchase up to <span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2003Member_zK1Us7fg1WVh" title="Stock options shares available for grants"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" contextRef="AsOf2021-08-31_custom_StockIncentivePlan2003Member" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">1,500,000</ix:nonFraction></span> shares of the Company's common stock. As of August 31, 2021, there were <span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2003Member_zwciW6UK59g" title="Stock options, outstanding"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" contextRef="AsOf2021-08-31_custom_StockIncentivePlan2003Member" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">15,000</ix:nonFraction></span> options outstanding and vested
under the 2003 Plan, under which no additional options may be granted.</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">During the three months ended August 31, 2021, <span id="xdx_907_ecustom--OptionsExercisedNetCashlessBasis_c20210601__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zPWXy380Fpcg" title="Options exercised, net cashless basis"><ix:nonFraction name="sotk:OptionsExercisedNetCashlessBasis" contextRef="From2021-06-012021-08-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">38,500</ix:nonFraction></span> options were exercised
on a net cashless basis, which resulted in <span id="xdx_904_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_c20210601__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zc3TkUV87Vzi" title="Exercise of stock options"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised" contextRef="From2021-06-012021-08-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">28,728</ix:nonFraction></span> shares of common stock being issued. During the six months ended August 31, 2021, <span id="xdx_908_ecustom--OptionsExercisedNetCashlessBasis_c20210301__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_z5rnwQwW6gX7" title="Options exercised, net cashless basis"><ix:nonFraction name="sotk:OptionsExercisedNetCashlessBasis" contextRef="From2021-03-012021-08-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">101,834</ix:nonFraction></span>
options were exercised on a net cashless basis, which resulted in <span id="xdx_900_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_c20210301__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_z8cag67jv0wl" title="Exercise of stock options"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised" contextRef="From2021-03-012021-08-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">78,629</ix:nonFraction></span> shares of common stock being issued.</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"><b>&#160;</b></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ShareholdersEquityAndShareBasedPaymentsTextBlock"><p id="xdx_801_eus-gaap--ShareholdersEquityAndShareBasedPaymentsTextBlock_zsKth4OQoI5c" style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"><b>NOTE 6: STOCK BASED COMPENSATION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company adopted ASC 718, &#8220;Share Based Payments.&#8221; which requires companies
to expense the value of employee stock options and similar awards.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">During the three and six months ended August 31, 2021, the Company granted options to acquire
<span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20210601__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zWysCH2BbrW" title="Options granted"><span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20210301__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zQmxOdNR2Zri" title="Options granted"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" contextRef="From2021-06-012021-08-31_us-gaap_EmployeeStockOptionMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" contextRef="From2021-03-012021-08-31_us-gaap_EmployeeStockOptionMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">62,750</ix:nonFraction></ix:nonFraction></span></span> shares to employees and directors exercisable at $<span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210301__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_z6l8oK1Ou6kb" title="Options, exercisable price"><span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210601__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_zN2vXtODWEJ2" title="Options, exercisable price"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" contextRef="From2021-03-012021-08-31_custom_EmployeesAndDirectorsMember" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" contextRef="From2021-06-012021-08-31_custom_EmployeesAndDirectorsMember" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">3.19</ix:nonFraction></ix:nonFraction></span></span>. The options granted to employees and directors vest over <span id="xdx_902_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_dtxL_c20210301__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_z62JRHIztYMe" title="Options, vesting period::XDX::P3Y"><span style="-sec-ix-hidden: xdx2ixbrl0682">three years</span></span> and
expire in <span id="xdx_902_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_dtxL_c20210301__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_zRWIk2JFs7Gk" title="Options, expiration period::XDX::P10Y"><span style="-sec-ix-hidden: xdx2ixbrl0684">ten years</span></span>. The options had a weighted average grant date fair value of $<span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c20210301__20210831_znMFyahJm333" title="Weighted average grant date fair value, per share"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">1.60</ix:nonFraction></span> per share.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>


<ix:exclude><!-- Field: Page; Sequence: 11; Value: 1 -->
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock"><p id="xdx_89F_eus-gaap--ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_zcF1E5ftqq8c" style="font: 10pt Cambria,serif; margin: 0">The weighted-average fair value of options are estimated on the date of grant using the
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0; display: none"><span id="xdx_8BC_zzXROrAoEf1">Weighted-average Black-Scholes assumptions</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="text-align: left">Expected Life</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Risk free interest rate</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="text-align: left">Expected volatility</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="width: 82%; text-align: left">Expected dividend yield</td><td style="width: 2%">&#160;</td>
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  </table>

</ix:nonNumeric><p id="xdx_8AD_zotkSEGbFgF4" style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">Total compensation related to non-vested options not yet recognized as of August
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<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">For the three and six months ended August 31, 2021 and 2020, net income and earnings
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in additional compensation expense during the three months ended August 31, 2021 and 2020, respectively. The impact of applying ASC 718
approximated $<span id="xdx_906_eus-gaap--StockOptionPlanExpense_pn3p0_c20210301__20210831_zl0HdIYbQ9ff"><ix:nonFraction name="us-gaap:StockOptionPlanExpense" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="-3" scale="0" unitRef="USD">41,000</ix:nonFraction></span> and $<span id="xdx_90C_eus-gaap--StockOptionPlanExpense_pn3p0_c20200301__20200831_zqjr13y3Jg68"><ix:nonFraction name="us-gaap:StockOptionPlanExpense" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="-3" scale="0" unitRef="USD">16,000</ix:nonFraction></span> in additional compensation expense during the six months ended August 31, 2021 and 2020, respectively.
Such amounts are included in general and administrative expenses on the unaudited consolidated statements of income.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:EarningsPerShareTextBlock"><p id="xdx_80D_eus-gaap--EarningsPerShareTextBlock_z819ap8uNt5a" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 7: EARNINGS PER SHARE</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"><p id="xdx_899_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zrl1IR2AHKsk" style="font: 10pt Cambria,serif; margin: 0">The following table sets forth the computation of basic and diluted earnings per share:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0"><span id="xdx_8BF_zcXJdpaWOFkk" style="display: none">Earnings Per Share - Computation of basic and diluted earnings per share</span></p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
    <td colspan="2" id="xdx_497_20210301__20210831_zNfojvHn77x7" style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
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<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
    <td colspan="2">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2">&#160;</td><td>&#160;</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_40F_eus-gaap--ProfitLoss_zGqtvxWyZLFi" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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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><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--WeightedAverageNumberOfSharesOutstandingBasic_z5s7t58jV5I2" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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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><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_40E_eus-gaap--DilutiveSecuritiesAbstract_iB_z4gB8zSerdy2" style="vertical-align: bottom; background-color: rgb(230,239,255)">
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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><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: rgb(230,239,255)">
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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><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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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <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><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--EarningsPerShareBasic_i01_z1D6uNTFruYj" style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt">Basic Earnings Per Share</td><td style="padding-bottom: 2.5pt">&#160;</td>
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  <tr id="xdx_404_eus-gaap--EarningsPerShareDiluted_i01_zlDunZJNftR4" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="padding-bottom: 2.5pt">Diluted Earnings Per Share</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 style="border-bottom: Black 2.5pt double; text-align: right"><ix:nonFraction name="us-gaap:EarningsPerShareDiluted" contextRef="From2020-06-012020-08-31" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">0.01</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
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</ix:nonNumeric><p id="xdx_8A4_zNdVTF9UbPJc" style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>


<ix:exclude><!-- Field: Page; Sequence: 12; Value: 1 -->
    <div style="border-bottom: rgb(98,145,178) 2pt solid; margin-top: 12pt; margin-bottom: 6pt; padding-bottom: 2pt"><p style="text-align: center; margin-top: 0pt; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->10<!-- Field: /Sequence -->&#160;</p></div>
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<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:LongTermDebtTextBlock"><p id="xdx_804_eus-gaap--LongTermDebtTextBlock_zdT6jcejPhd4" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 8: LONG TERM DEBT</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ScheduleOfDebtTableTextBlock"><p id="xdx_890_eus-gaap--ScheduleOfDebtTableTextBlock_zk4VB9ymkBek" style="font: 10pt Cambria,serif; margin: 0">Long-term debt consists of the following:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0"><span id="xdx_8BC_zRnMbnBcladj" style="display: none">Long Term Debt - Schedule of Long-Term Debt</span></p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold">&#160;</td>
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    <td colspan="2" id="xdx_491_20210228_zyb31wuiS5a1" style="font-size: 9pt; font-weight: bold; text-align: center">February 28,</td><td style="font-size: 9pt; font-weight: bold">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold">&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="width: 72%; text-align: left; padding-bottom: 1pt">Note Payable, bank, unsecured, Paycheck Protection Program funding, initially scheduled to be payable in monthly installments of principal and interest of $<span id="xdx_902_eus-gaap--DebtInstrumentPeriodicPayment_c20200301__20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zGsl2ikbNqSl" title="Monthly installments of principal and interest"><ix:nonFraction name="us-gaap:DebtInstrumentPeriodicPayment" contextRef="From2020-03-012021-02-28_us-gaap_UnsecuredDebtMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">56,370</ix:nonFraction></span> through April 2022. Interest rate <span id="xdx_90E_eus-gaap--DebtInstrumentInterestRateStatedPercentage_iI_dp_c20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_z7hoR7JsIN1i" title="Interest rate"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" contextRef="AsOf2021-02-28_us-gaap_UnsecuredDebtMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">1</ix:nonFraction></span>%. <span id="xdx_90E_eus-gaap--DebtInstrumentTerm_dtY_c20200301__20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zVxljkx257S5" title="Maturity"><ix:nonNumeric contextRef="From2020-03-012021-02-28_us-gaap_UnsecuredDebtMember" format="ixt-sec:duryear" name="us-gaap:DebtInstrumentTerm">2</ix:nonNumeric></span>-year term. Under the terms of the CARES Act, forgiveness for all or a portion of the loan may be granted based upon use of the loan proceeds for eligible payroll and related payroll costs and other qualified expenses. The Company applied for forgiveness of this obligation in December 2020. Under the Paycheck Protection Program Flexibility Act, payments of principal and interest shall be deferred until the date that the Small Business Administration remits the forgiveness amount to the Company&#8217;s lender or determines that some or all of the PPP loan is not eligible for forgiveness. If all or a portion of the loan is not forgiven, the unforgiven balance and accrued interest shall be payable during the remainder of the term of the loan. The SBA forgave this loan in its entirety in April 2021. During the six months ended August 31, 2021, the Company recorded a gain on the forgiveness of the PPP Loan and accrued interest in the amount of $<span id="xdx_90D_eus-gaap--DebtInstrumentDecreaseForgiveness_c20210301__20210831__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zbZOTh4WJ3id" title="Gain on forgiveness of debt"><ix:nonFraction name="us-gaap:DebtInstrumentDecreaseForgiveness" contextRef="From2021-03-012021-08-31_us-gaap_UnsecuredDebtMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,005,372</ix:nonFraction></span>. The gain on the forgiveness of the PPP Loan is a non-taxable event.</td><td style="width: 2%; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_408_eus-gaap--LongTermDebt_iI_zy7uBVW1FrIi" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="text-align: left; padding-bottom: 2.5pt">Total long-term debt</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0769">&#8212;</span></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"><ix:nonFraction name="us-gaap:LongTermDebt" contextRef="AsOf2021-02-28" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,001,640</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>

</ix:nonNumeric><p id="xdx_8A7_znRBTtS5AVUa" style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ShortTermDebtTextBlock"><p id="xdx_807_eus-gaap--ShortTermDebtTextBlock_zhyv6Oslki9e" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 9: REVOLVING LINE OF CREDIT</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company has a $<span id="xdx_90A_eus-gaap--LineOfCreditFacilityMaximumBorrowingCapacity_iI_c20210831__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_z71zDPXEpd66" title="Revolving line of credit"><span id="xdx_906_eus-gaap--LineOfCreditFacilityMaximumBorrowingCapacity_iI_c20210228__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zw0m05o8fpYc" title="Revolving line of credit"><ix:nonFraction name="us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity" contextRef="AsOf2021-08-31_us-gaap_RevolvingCreditFacilityMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD"><ix:nonFraction name="us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity" contextRef="AsOf2021-02-28_us-gaap_RevolvingCreditFacilityMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,500,000</ix:nonFraction></ix:nonFraction></span></span> revolving line of credit at prime which was <span id="xdx_908_eus-gaap--LineOfCreditFacilityInterestRateAtPeriodEnd_iI_dp_c20210831__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zq0zX8f4pzG4" title="Interest rate"><span id="xdx_90B_eus-gaap--LineOfCreditFacilityInterestRateAtPeriodEnd_iI_dp_c20210228__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zHcdbY2eN1P3" title="Interest rate"><ix:nonFraction name="us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd" contextRef="AsOf2021-08-31_us-gaap_RevolvingCreditFacilityMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure"><ix:nonFraction name="us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd" contextRef="AsOf2021-02-28_us-gaap_RevolvingCreditFacilityMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">3.25</ix:nonFraction></ix:nonFraction></span></span>% at August
31, 2021 and February 28, 2021. <span id="xdx_908_eus-gaap--LineOfCreditFacilityCollateral_c20210301__20210831__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zLJ9Yfq91RM7" title="Revolving credit line collateral"><span id="xdx_900_eus-gaap--LineOfCreditFacilityCollateral_c20200301__20210228__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zD0vrtludiFf"><ix:nonNumeric contextRef="From2021-03-012021-08-31_us-gaap_RevolvingCreditFacilityMember" name="us-gaap:LineOfCreditFacilityCollateral"><ix:nonNumeric contextRef="From2020-03-012021-02-28_us-gaap_RevolvingCreditFacilityMember" name="us-gaap:LineOfCreditFacilityCollateral">The revolving credit line is collateralized by the Company&#8217;s accounts receivable and inventory.</ix:nonNumeric></ix:nonNumeric></span></span>
The revolving credit line is payable on demand and must be retired for a 30-day period, once annually. If the Company fails to perform
the 30-day annual pay down or if the bank elects to terminate the credit line, the bank may, at its option, convert the outstanding balance
to a 36-month term note with payments including interest in 36 equal installments.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">As of August 31, 2021, $<span id="xdx_90A_ecustom--CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers_iI_c20210831__us-gaap--CreditFacilityAxis__us-gaap--LetterOfCreditMember_zQdZxkLghxlh" title="Credit line utilized to collateralize letter of credit issued to customers"><ix:nonFraction name="sotk:CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers" contextRef="AsOf2021-08-31_us-gaap_LetterOfCreditMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">618,000</ix:nonFraction></span> of the Company&#8217;s credit line was being utilized to
collateralize letters of credit issued to customers that have remitted cash deposits to the Company on existing orders. The letters of
credit expire in 2022. As of August 31, 2021, there were no outstanding borrowings under the line of credit and the unused portion of
the credit line was $<span id="xdx_904_eus-gaap--LineOfCreditFacilityCurrentBorrowingCapacity_iI_c20210831__us-gaap--CreditFacilityAxis__us-gaap--LetterOfCreditMember_zF84mn5ux716" title="Unused portion of credit line"><ix:nonFraction name="us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity" contextRef="AsOf2021-08-31_us-gaap_LetterOfCreditMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">882,000</ix:nonFraction></span> as of August 31, 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:ConcentrationRiskDisclosureTextBlock"><p id="xdx_802_eus-gaap--ConcentrationRiskDisclosureTextBlock_z9ah0w2oOXPl" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<ix:nonNumeric contextRef="From2021-03-01to2021-08-31" escape="true" name="us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock"><p id="xdx_891_eus-gaap--SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_zoG2lxlQec94" style="font: 10pt Cambria,serif; margin: 0">Export sales to customers located outside the United States and Canada were approximately
as follows:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0"><span id="xdx_8B3_z5S3y8Jsepb1" style="display: none">Customer Concentrations and Foreign Sales - Schedule of Customer Concentrations and Foreign Sales</span>&#160;</p>

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center">Six&#160;Months&#160;Ended<br /> August 31,</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center">Three&#160;Months&#160;Ended<br /> August 31,</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center">2021</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center">2020</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center">2021</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center">2020</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td colspan="2" style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td colspan="2" style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td colspan="2" style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td colspan="2" style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; width: 44%; text-align: left">Asia Pacific (APAC) <span id="xdx_915_esrt--AsiaPacificMember_zD77DvALNY49" style="display: none">Asia Pacific (APAC)</span></td><td style="font: 10pt Cambria,serif; width: 2%">&#160;</td>
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    <td style="font: 10pt Cambria,serif; width: 1%; text-align: left">$</td><td style="font: 10pt Cambria,serif; width: 10%; text-align: right"><span id="xdx_90B_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zfBtZJkw6hJe" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2020-03-012020-08-31_srt_AsiaPacificMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">2,377,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; width: 1%; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; width: 2%">&#160;</td>
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    <td style="font: 10pt Cambria,serif; width: 1%; text-align: left">$</td><td style="font: 10pt Cambria,serif; width: 10%; text-align: right"><span id="xdx_906_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zg7XZyKMtfq5" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2020-06-012020-08-31_srt_AsiaPacificMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">455,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; width: 1%; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font: 10pt Cambria,serif; text-align: left">Europe, Middle East, Asia (EMEA) <span id="xdx_91B_eus-gaap--EMEAMember_zt43EI7jHich" style="display: none">Europe, Middle East, Asia (EMEA)</span></td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><span id="xdx_90E_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210301__20210831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_ziqGZ9FoJKB1" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2021-03-012021-08-31_us-gaap_EMEAMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,436,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><span id="xdx_908_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zdRrQzpzNktc" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2020-03-012020-08-31_us-gaap_EMEAMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,198,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><span id="xdx_905_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zz8kzkVelRz4" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2021-06-012021-08-31_us-gaap_EMEAMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">593,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td style="font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; text-align: right"><span id="xdx_904_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zctqmF5GVKDb" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2020-06-012020-08-31_us-gaap_EMEAMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">767,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt">Latin America<span id="xdx_918_esrt--LatinAmericaMember_zVIic5vHZ7m1" style="display: none">Latin America</span></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><span id="xdx_90A_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210301__20210831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zpNIavEh9tWj" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2021-03-012021-08-31_srt_LatinAmericaMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">645,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><span id="xdx_903_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zdMGBXTWZPR1" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2020-03-012020-08-31_srt_LatinAmericaMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">423,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><span id="xdx_90A_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zzgrKcJMqE22" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2021-06-012021-08-31_srt_LatinAmericaMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">293,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"><span id="xdx_909_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zGMHBg0KTWL6" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2020-06-012020-08-31_srt_LatinAmericaMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">103,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; padding-bottom: 2.5pt">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"><span id="xdx_905_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210301__20210831_zrEvnVwxopfe" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2021-03-01to2021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">4,934,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"><span id="xdx_908_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831_zhlK0drBEWn8" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2020-03-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">3,998,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"><span id="xdx_90B_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831_zj2ZHt2jJz9i" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2021-06-012021-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">2,517,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"><span id="xdx_904_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831_zRpkwiwydYJb" title="Total sales"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax" contextRef="From2020-06-012020-08-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,325,000</ix:nonFraction></span></td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>


</ix:nonNumeric><p id="xdx_8A2_zkmIGqt6vti4" style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">During first half of fiscal 2022 and fiscal 2021, sales to foreign customers accounted
for approximately $<span id="xdx_90A_eus-gaap--Revenues_c20210301__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zJrl5w8m0oFk" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2021-03-012021-08-31_us-gaap_SalesRevenueNetMember_custom_ForeignCustomersMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">4,934,000</ix:nonFraction></span> <span style="font-size: 8pt">&#160;</span>and $<span id="xdx_90C_eus-gaap--Revenues_c20200301__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zKlXLsHwCAh2"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2020-03-012020-08-31_us-gaap_SalesRevenueNetMember_custom_ForeignCustomersMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">3,998,000</ix:nonFraction></span>, or <span id="xdx_905_ecustom--SalesRevenuePercent_dp_c20210301__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zjK6aaObDTPg" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2021-03-012021-08-31_us-gaap_SalesRevenueNetMember_custom_ForeignCustomersMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">64</ix:nonFraction></span>% and <span id="xdx_907_ecustom--SalesRevenuePercent_dp_c20200301__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zoHIbPhV8u9l" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2020-03-012020-08-31_us-gaap_SalesRevenueNetMember_custom_ForeignCustomersMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">58</ix:nonFraction></span>% respectively, of total revenues.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">During second quarter of fiscal 2022 and fiscal 2021, sales to foreign customers accounted
for approximately $<span id="xdx_909_eus-gaap--Revenues_c20210601__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zcWq6BnArM47" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2021-06-012021-08-31_us-gaap_SalesRevenueNetMember_custom_ForeignCustomersMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">2,517,000</ix:nonFraction></span> and $<span id="xdx_900_eus-gaap--Revenues_c20200601__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_z5KEWTpGEbF6" title="Sales revenue"><ix:nonFraction name="us-gaap:Revenues" contextRef="From2020-06-012020-08-31_us-gaap_SalesRevenueNetMember_custom_ForeignCustomersMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,325,000</ix:nonFraction></span>, or <span id="xdx_900_ecustom--SalesRevenuePercent_dp_c20210601__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zxX8nCQDcs8" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2021-06-012021-08-31_us-gaap_SalesRevenueNetMember_custom_ForeignCustomersMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">62</ix:nonFraction></span>% and <span id="xdx_900_ecustom--SalesRevenuePercent_dp_c20200601__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zN2CwgX9PSu4" title="Sales revenue, percent"><ix:nonFraction name="sotk:SalesRevenuePercent" contextRef="From2020-06-012020-08-31_us-gaap_SalesRevenueNetMember_custom_ForeignCustomersMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">38</ix:nonFraction></span>% respectively, of total revenues.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company had two customers which accounted for <span id="xdx_900_eus-gaap--ConcentrationRiskPercentage1_dp_c20210301__20210831__srt--MajorCustomersAxis__custom--TwoCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zPseSnqST7jf" title="Sales revenue, percent"><ix:nonFraction name="us-gaap:ConcentrationRiskPercentage1" contextRef="From2021-03-012021-08-31_custom_TwoCustomersMember_us-gaap_SalesRevenueNetMember_us-gaap_CustomerConcentrationRiskMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">26</ix:nonFraction></span>% of sales during the first half
of fiscal 2022. The Company had five customers which accounted for <span id="xdx_902_eus-gaap--ConcentrationRiskPercentage1_dp_c20210601__20210831__srt--MajorCustomersAxis__custom--FiveCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zXKxeymqLM27" title="Sales revenue, percent"><ix:nonFraction name="us-gaap:ConcentrationRiskPercentage1" contextRef="From2021-06-012021-08-31_custom_FiveCustomersMember_us-gaap_SalesRevenueNetMember_us-gaap_CustomerConcentrationRiskMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">47</ix:nonFraction></span>% of sales during the second quarter of fiscal 2022. Two
customers accounted for <span id="xdx_903_eus-gaap--ConcentrationRiskPercentage1_dp_c20210301__20210831__srt--MajorCustomersAxis__custom--TwoCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--AccountsReceivableMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zn9SNSgRtHWk" title="Outstanding accounts receivables, percent"><ix:nonFraction name="us-gaap:ConcentrationRiskPercentage1" contextRef="From2021-03-012021-08-31_custom_TwoCustomersMember_us-gaap_AccountsReceivableMember_us-gaap_CustomerConcentrationRiskMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">55</ix:nonFraction></span>% of the outstanding accounts receivables at August 31, 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company had six customers which accounted for <span id="xdx_903_eus-gaap--ConcentrationRiskPercentage1_dp_c20200301__20200831__srt--MajorCustomersAxis__custom--SixCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_z7N2Bd17VyPl" title="Sales revenue, percent"><ix:nonFraction name="us-gaap:ConcentrationRiskPercentage1" contextRef="From2020-03-012020-08-31_custom_SixCustomersMember_us-gaap_SalesRevenueNetMember_us-gaap_CustomerConcentrationRiskMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">47</ix:nonFraction></span>% of sales during the first half of
fiscal 2021.The Company had six customers which accounted for <span id="xdx_908_eus-gaap--ConcentrationRiskPercentage1_dp_c20200601__20200831__srt--MajorCustomersAxis__custom--SixCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zAlCf9Yel6g" title="Sales revenue, percent"><ix:nonFraction name="us-gaap:ConcentrationRiskPercentage1" contextRef="From2020-06-012020-08-31_custom_SixCustomersMember_us-gaap_SalesRevenueNetMember_us-gaap_CustomerConcentrationRiskMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">54</ix:nonFraction></span>% of sales during the second quarter of fiscal 2021. Two customers accounted
for <span id="xdx_90A_eus-gaap--ConcentrationRiskPercentage1_dp_c20200301__20210228__srt--MajorCustomersAxis__custom--TwoCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--AccountsReceivableMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zkSYTxSXmCS9" title="Outstanding accounts receivables, percent"><ix:nonFraction name="us-gaap:ConcentrationRiskPercentage1" contextRef="From2020-03-012021-02-28_custom_TwoCustomersMember_us-gaap_AccountsReceivableMember_us-gaap_CustomerConcentrationRiskMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">64</ix:nonFraction></span>% of the outstanding accounts receivables at February 28, 2021<span style="font-size: 8pt">&#160;</span>.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><span id="xdx_91D_ecustom--ForeignCustomersMember_zlPA76K3Gyg7" style="display: none">Foreign Customers</span><span id="xdx_918_eus-gaap--SalesRevenueNetMember_zzSu6J5GcNuj" style="display: none">Sales Revenue</span><span id="xdx_916_eus-gaap--AccountsReceivableMember_zhTyRF0edpCf" style="display: none">Accounts Receivables</span><span id="xdx_91F_ecustom--TwoCustomersMember_zxVrxfQo4Hm9" style="display: none">Two Customers</span><span id="xdx_914_ecustom--FiveCustomersMember_z111w2cf0mcj" style="display: none">Five Customers</span><span id="xdx_91F_ecustom--SixCustomersMember_z8i2u6vKsEC8" style="display: none">Six Customers</span></p>

</ix:nonNumeric><p id="xdx_810_ztLqccD6WYo1" style="font: 8pt Cambria,serif; margin: 0">&#160;</p>


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<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="item2"></span></p><p style="font: 10pt Cambria,serif; margin: 0"><b>ITEM 2 &#8211; Management&#8217;s Discussion and Analysis of Financial Condition and
Results of Operations</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><span style="text-decoration: underline">FORWARD-LOOKING STATEMENTS</span></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">We discuss expectations regarding our future performance, such as our business outlook,
in our annual and quarterly reports, news releases, and other written and oral statements. These &#8220;forward-looking statements&#8221;
are based on currently available competitive, financial and economic data and our operating plans. They are inherently uncertain, and
investors must recognize that events could turn out to be significantly different from our expectations and could cause actual results
to differ materially. These factors include, among other considerations, general economic and business conditions; political, regulatory,
tax, competitive and technological developments affecting our operations or the demand for our products; the duration and scope of the
COVID-19 pandemic; the extent and duration of the pandemic&#8217;s adverse effect on economic and social activity, consumer confidence,
discretionary spending and preferences, labor and healthcare costs, and unemployment rates, any of which may reduce demand for some of
our products and impair the ability of those with whom we do business to satisfy their obligations to us; our ability to sell and provide
our services and products, including as a result of continued pandemic related travel restrictions, mandatory business closures, and stay-at
home or similar orders; any temporary reduction in our workforce, closures of our offices and facilities and our ability to adequately
staff and maintain our operations resulting from the pandemic; the ability of our customers and suppliers to continue their operations
as result of the pandemic, which could result in terminations of contracts, losses of revenue; the recovery of the Electronics/ Microelectronics
and Medical markets following COVID-19 related slowdowns; and further adverse effects to our supply chain; maintenance of increased order
backlog, including effects of any COVID-19 related cancellations; the imposition of tariffs; timely development and market acceptance
of new products and continued customer validation of our coating technologies; adequacy of financing; capacity additions, the ability
to enforce patents; maintenance of operating leverage; maintenance of increased order backlog; consummation of order proposals; completion
of large orders on schedule and on budget; continued sales growth in the medical and alternative energy markets; successful transition
from primarily selling ultrasonic nozzles and components to a more complex business providing complete machine solutions and higher value
subsystems; and realization of quarterly and annual revenues within forecasted range of sales guidance.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">We undertake no obligation to update any forward-looking statement.</p>

<p style="font: 10pt Cambria,serif; margin: 0 0 0 1in; text-indent: -1in"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><span style="text-decoration: underline">Overview</span></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Founded in 1975, Sono-Tek Corporation designs and manufactures ultrasonic coating systems
that apply precise, thin film coatings to a multitude of products for the microelectronics/electronics, alternative energy, medical and
industrial markets, including specialized glass applications in construction and automotive. We also sell our products to emerging research
and development and other markets. We have invested significant resources to enhance our market diversity by leveraging our core ultrasonic
coating technology. As a result, we have increased our portfolio of products, the industries we serve and the countries in which we sell
our products.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Our ultrasonic nozzle systems use high frequency, ultrasonic vibrations that atomize liquids
into minute drops that can be applied to surfaces at low velocity providing thin layers of functional or protective materials over a surface
such as glass or metals. Our solutions are environmentally-friendly, efficient and highly reliable. They enable dramatic reductions in
overspray, savings in raw materials, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity
and reduced emissions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">We believe product superiority is imperative and that it is attained through the extensive
experience we have in the coatings industry, our proprietary manufacturing know-how and skills and the unique work force we have built
over the years. Our growth strategy is to leverage our innovative technologies, proprietary know-how, unique talent and experience, and
global reach to further advance the use of ultrasonic coating technologies for the microscopic coating of surfaces in a broader array
of applications that enable better outcomes for our customers&#8217; products and processes.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">We are a global business with approximately 64% of our sales generated from outside the
United States and Canada in the first six months of fiscal 2022. Our direct sales team and our distributor and sales representative network
are located in North America, Latin America, Europe and Asia. We continue to expand our sales capabilities by increasing the size of our
direct sales force and adding new distributors and sales representatives (&#8221;reps&#8221;). In addition, we have established testing
labs at our distribution partner sites in China, Taiwan, Germany, Turkey, Korea and Japan, while also expanding our first testing lab
that is co-located with our manufacturing facilities in New York. These labs provide significant value for demonstrating to prospective
customers the capabilities of our equipment and enabling us to develop custom solutions to meet their needs. Providing customers visiting
our labs with a high level of application engineering expertise to develop their unique coating processes is our focus, as we continually
expand Sono-Tek&#8217;s services to best support the needs of our customers.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>


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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Over the last decade, we have shifted our business from primarily selling our ultrasonic
nozzles and components to a more complex business providing complete machine solutions and higher value subsystems to original equipment
manufacturers (&#8220;OEMs&#8221;). This strategy has resulted in significant growth of our average unit selling price; with our larger
machines often selling for over $300,000 and system prices sometimes reaching over $1,000,000. As a result of this transition, we have
broadened our addressable market and we believe that we can grow sales on a larger scale. We expect that we will experience wide variations
in both order flow and shipments from quarter to quarter.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><span style="text-decoration: underline">Second Quarter Fiscal 2022 Highlights</span></b> (compared with the second quarter of
fiscal 2021 unless otherwise noted) We refer to the three-month periods ended August 31, 2021 and 2020 as the second quarter of fiscal
2022 and fiscal 2021, respectively.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font: 9pt Symbol">&#183;</span></td><td>Net sales were $4,070,000, up 17% or $589,000, driven by increased sales of OEM systems to the China market.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font: 9pt Symbol">&#183;</span></td><td>Gross Profit increased 28% to $2,074,000 due to higher sales and product mix.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font: 9pt Symbol">&#183;</span></td><td>Gross Margin expanded 440 basis points to 51.0% primarily due to product mix.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font: 9pt Symbol">&#183;</span></td><td>Operating income increased 123% to $449,000 due to the increase in gross profit, partially offset by increases in operating expenses.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font: 9pt Symbol">&#183;</span></td><td>Income before taxes increased 125% to $456,000.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font-family: Symbol">&#183;</span></td><td>Backlog on August 31, 2021 reached a record high of $6,332,000, an increase of 45% compared with backlog of $4,380,000 on May 31,
2021 (the end of the fiscal Q1) and increased 64% compared to backlog of $3,851,000 on February 28, 2021.</td></tr></table>

<p style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><span style="text-decoration: underline">First Half Fiscal 2022 Highlights</span></b> (compared with the first half of fiscal
2021 unless otherwise noted) We refer to the six-month periods ended August 31, 2021 and 2020 as the first half of fiscal 2022 and fiscal
2021, respectively.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font-family: Symbol">&#183;</span></td><td>Net Sales were $7,715,000, an increase of 12%, primarily driven by strength in the semiconductor and electronic diagnostic coating
markets.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font-family: Symbol">&#183;</span></td><td>Gross Profit increased 23% to $3,898,000 due to higher sales and product mix.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font-family: Symbol">&#183;</span></td><td>Gross Margin expanded 440 basis points to 50.5% primarily due to product mix and lower than expected warranty and installation costs.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font-family: Symbol">&#183;</span></td><td>Operating Income increased 105% to $791,000 due to the increase in gross profit, partially offset by increases in operating expenses.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font-family: Symbol">&#183;</span></td><td>Income before taxes increased 94% to $802,000, excluding the benefit from PPP loan forgiveness of $1.0 million.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><span style="font-family: Symbol">&#183;</span></td><td>As of August 31, 2021, the Company had no outstanding debt.</td></tr></table>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><span style="text-decoration: underline">RESULTS OF OPERATIONS</span></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i><span style="text-decoration: underline">Sales:</span></i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0 0 6pt"><b>Product Sales</b></p>

<table cellpadding="0" cellspacing="0" style="font: 9pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="font-size: 10pt">&#160;</td><td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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    <td colspan="6" style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: center">Change</td><td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold">&#160;</td><td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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    <td style="font-size: 10pt">&#160;</td><td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Sales growth of 17% during the second quarter of fiscal 2022 was primarily driven by a
significant shipment of multi-axis coating systems used to coat electronic diagnostic devices for rapid COVID-19 test kits, as well as
strong sales of OEM systems used in the Semiconductor and Spray Fluxing markets. The sales increases in these product lines more than
offset the decrease in Integrated Coating Systems sales, which were lower due to the shipment of a large integrated coating machine in
last year&#8217;s first quarter.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>


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<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0 0 6pt"><b>Market Sales</b></p>

<table cellpadding="0" cellspacing="0" style="font: 9pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="font-size: 10pt">&#160;</td><td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Sales to the Electronics market recorded significant growth of 79% in the second quarter,
primarily driven by strong sales to China for our OEM systems which are used in the semiconductor market, and continued acceleration of
Sono-Tek products for coating electronic diagnostic devices used in rapid COVID-19 test kits. The Alternative Energy market was also strong
with growing investments in the clean energy sector from both government and private industry driving demand for Sono-Tek machines for
coating membranes used in fuel cells and carbon capture applications.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 0 6pt"><b>Geographic Sales</b></p>

<table cellpadding="0" cellspacing="0" style="font: 9pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="font-size: 10pt">&#160;</td><td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">593,000</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="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">190,000</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="padding-bottom: 2.5pt">TOTAL</td><td style="padding-bottom: 2.5pt">&#160;</td>
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">In the first half of fiscal 2022, approximately 64% of sales originated outside of the
United States and Canada compared with 58% in the first half of fiscal 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">In the second quarter of fiscal 2022, approximately 62% of sales originated outside of
the United States and Canada compared with 38% in the second quarter of fiscal 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Strong sales in Q2 FY2022 were primarily driven from APAC, reflecting the transition of
several countries emerging from COVID-19 lockdowns to bring their manufacturing operations back online. APAC shipments during the second
quarter included both a newly developed medical device coating machine for implantable devices and several stent coating machines to China,
a newly developed EMI coating system to Singapore, and a repeat order for our latest balloon catheter coating machine that was shipped
to Japan.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Sales to the U.S. &amp; Canada dipped in Q2 FY2022, primarily due to the shipment of a
large float glass coating line in Q2 FY2021, which did not repeat in Q2 FY2022. Sales of large industrial float glass machines typically
varies from period to period.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Sono-Tek continues to adapt and refocus its sales efforts to those countries that are operational
during COVID-19 peaks and dips. This strategy has been helpful in softening the impact of the pandemic on the Company&#8217;s operations
and will continue to be part of Sono-Tek&#8217;s go-to-market strategy for the foreseeable future.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 0 6pt"><b><i><span style="text-decoration: underline">Gross Profit: </span></i></b></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: center">Three Months Ended <br /> August 31,</td><td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold">&#160;</td><td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom">
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">For the second quarter of fiscal 2022, gross profit increased $453,000, or 28%, compared
with the second quarter of fiscal 2021. The gross profit margin was 51.0% compared with 46.6% for the prior year period. The improvement
in the gross profit margin is due to increased sales combined with higher sales margins.</p>


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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Gross profit increased $716,000, or 23%, to $3,898,000 for the first half of fiscal 2022
compared with $3,182,000 in the first half of fiscal 2021. The gross profit margin was 50.5% compared with 46.1% for the prior year period.
The improvement in the gross profit margin is due to increased sales combined with higher sales margins.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 0 8pt"><b><i><span style="text-decoration: underline">Operating Expenses:</span></i></b></p>

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  <tr style="vertical-align: bottom">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 2.5pt double; font: 9pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 9pt Cambria,serif; text-align: right">1,420,000</td><td style="font: 9pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
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    <td style="border-bottom: Black 2.5pt double; font: 9pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 9pt Cambria,serif; text-align: right">2,796,000</td><td style="font: 9pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 2.5pt double; font: 9pt Cambria,serif; text-align: right">311,000</td><td style="font: 9pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
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<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Research and Product Development:</i></b></p>

<p style="font: 10pt Times New Roman,serif; margin: 0">Research and product development costs decreased in the second quarter of fiscal
2022 due to decreased salaries and related costs. In the second quarter of fiscal 2022, some of our personnel, previously assigned to
research and development projects, were assigned to specific customer sales orders and the associated costs were
recorded in inventory, as incurred.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Marketing and Selling</i>:</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">Marketing and selling costs increased in the second quarter of fiscal 2022 due to increases
in commissions, salaries and travel expenses. These increases were partially offset by decreased trade show expenses as a result of the
COVID-19 outbreak.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Marketing and selling costs increased in the first half of fiscal 2022 due to increased
commission expense. This increase was partially offset by decreased trade show expenses in the first half of fiscal 2022.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">In the second quarter of fiscal 2022, we expended approximately $163,000 for commissions
as compared with $117,000 for the second quarter of fiscal 2021, an increase of $46,000. In the first half of fiscal 2022, we expended
approximately $387,000 for commissions as compared with $247,000 for the first half of fiscal 2021, an increase of $140,000. The increase
in commission expense in the first quarter and second half of fiscal 2022 is due to an increase in external commission expense.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>General and Administrative:</i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">In the second quarter of fiscal 2022 and first half of fiscal 2022 we experienced increases
in salaries, professional fees, corporate expenses and stock- based compensation expense. In August 2021, the Company&#8217;s stock was
approved for listing on the Nasdaq Capital Market. In the second quarter of fiscal 2022, the Company expensed $75,000 in application and
entry fees related to its listing on the Nasdaq Capital Market.</p>

<p style="font: 10pt Cambria,serif; margin: 0; color: #0070C0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i><span style="text-decoration: underline">Operating Income</span></i><span style="text-decoration: underline">: </span></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">Our operating income increased $248,000, to $449,000 in the second quarter of fiscal
2022 compared with $201,000 for the second quarter of fiscal 2021. Growth in revenue and gross profit were key factors in the
improvement of operating income partially offset by increases in operating expenses in the second quarter of fiscal 2022. Operating
margin for the quarter increased to 11% compared with 5.8% in the prior year period.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">For the first half of fiscal 2022, operating income increased $405,000, to $791,000
compared with $386,000 for the first half of fiscal 2021. Growth in revenue and gross profit were key factors in the improvement of
operating income partially offset by increases in operating expenses income in the first half of fiscal 2022. Operating margin for
the first half of fiscal 2022 increased to 10.3% compared with 5.6% in the first half of fiscal 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i><span style="text-decoration: underline">Interest and Dividend Income:</span></i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">Interest and dividend income increased $5,000 to $8,000 in the second quarter of fiscal
2022 as compared with $3,000 for the second quarter of fiscal 2021. In the first half of fiscal 2022 interest and dividend income decreased
$14,000 to $11,000 as compared with $25,000 for the first half of fiscal 2021. The decrease in the first half of fiscal 2022 is due to
the decline in market rates. Our present investment policy is to invest excess cash in highly liquid, lower risk US Treasury securities.
At August 31, 2021, the majority of our holdings are rated at or above investment grade.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>


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<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i><span style="text-decoration: underline">Income Tax Expense:</span></i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">We recorded income tax expense of $112,000 for the second quarter of fiscal 2022 compared
with $25,000 for the second quarter of fiscal 2021. For the first half of fiscal 2022 we recorded income tax expense of $197,000 compared
with $67,000 for the first half of fiscal 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The increase in income tax expense in the second quarter and first half of fiscal 2022
is due to a decrease in available research and development tax credits combined with the increase in income before taxes.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i><span style="text-decoration: underline">Paycheck Protection Program Loan Forgiveness:</span></i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">During fiscal 2021, we entered into a loan transaction pursuant to which we received proceeds
of $1,001,640 (the &#8220;PPP Loan&#8221;) under the Paycheck Protection Program (&#8220;PPP&#8221;). The PPP, established as part of
the Coronavirus Aid, Relief and Economic Security Act (&#8220;CARES Act&#8221;), provides for loans to qualifying companies and is administered
by the U.S. Small Business Administration (the &#8220;SBA&#8221;).</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The PPP Loan was evidenced by a promissory note (the &#8220;Note&#8221;), between the Company
and M&amp;T Bank, (the &#8220;Bank&#8221;). The Note had a two-year term, accrued interest at the rate of 1.0% per annum, and was prepayable
at any time without payment of any premium. No payments of principal or interest were due during the six-month period beginning on the
date of the Note. Beginning on the seventh month following the date of the Note, we were required to make 18 monthly payments of principal
and interest in the amount of $56,370.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Under the terms of the CARES Act, PPP Loan recipients can apply for and be granted forgiveness
for all or a portion of loan granted under the PPP, with such forgiveness to be determined, subject to limitations, based on the use of
the loan proceeds for payment of payroll costs and any payments of mortgage interest, rent, and utilities. However, at least 75 percent
of the PPP Loan proceeds must be used for eligible payroll costs. The terms of any forgiveness may also be subject to further requirements
in any regulations and guidelines the SBA may adopt.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company applied for forgiveness of the PPP Loan in December 2020. On April 1, 2021,
the Company received notice from the Bank that the Bank had received confirmation from the SBA that the application for forgiveness of
the PPP Loan had been approved. The loan forgiveness request in the amount of $1,001,640 was applied to the Company&#8217;s entire outstanding
PPP Loan balance with the Bank.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">During the six months ended August 31, 2021, the Company recorded a gain on the forgiveness
of the PPP Loan and accrued interest in the amount of $1,005,372. The gain on the forgiveness of the PPP Loan is a non-taxable event.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i><span style="text-decoration: underline">Net Income:</span></i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">Net income increased by $166,000 to $344,000 for the second quarter of fiscal 2022 compared
with $178,000 for the second quarter of fiscal 2021. The increase in net income during the second quarter is a result of an increase in
operating income offset by an increase in income taxes.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Net income increased by $1,265,000 to $1,611,000 for the first half of fiscal 2022 compared
with $346,000 for the first half of fiscal 2021. The increase in net income in the first half of fiscal 2022 is a result of an increase
in operating income combined with the PPP Loan forgiveness offset by an increase in income taxes.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><span style="text-decoration: underline">Impact of COVID-19</span></b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">In December 2019, the COVID-19 outbreak occurred in China and has since spread to other
parts of the world. On March 11, 2020, the World Health Organization declared COVID-19 to be a global pandemic and recommended containment
and mitigation measures. On March 13, 2020, the United States declared a national emergency concerning the outbreak. Along with these
declarations, extraordinary and wide-ranging actions have been taken by international, federal, state, and local public health and governmental
authorities to contain and combat the outbreak and spread of COVID-19 in regions across the United States and the world. These actions
include quarantines, social distancing and &#8220;stay-at-home&#8221; orders, travel restrictions, mandatory business closures and other
mandates that have substantially restricted individuals&#8217; daily activities and curtailed or ceased many businesses&#8217; normal
operations.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">In response to the pandemic and these actions, we began implementing changes in our business
in March 2020 to protect our employees and customers:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 18pt"></td><td style="width: 18pt"><span style="font-family: Symbol">&#183;</span></td><td>We implemented social distancing and other health and safety protocols.</td></tr></table>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 18pt"></td><td style="width: 18pt"><span style="font-family: Symbol">&#183;</span></td><td>We have flexed the workforce in our manufacturing operations based on business needs, including the addition of a second shift and
the implementation of remote, alternative and flexible work arrangements.</td></tr></table>

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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">While all of these measures have been necessary and appropriate, they may result in additional
costs and may adversely impact our business and financial performance. As our response to the pandemic evolves, we may incur additional
costs and will potentially experience adverse impacts to our business, each of which may be significant. In addition, an extended period
of remote work arrangements could impair our ability to effectively manage our business, and introduce additional operational risks, including,
but not limited to, cybersecurity risks and increased vulnerability to security breaches, cyber-attacks, computer viruses, ransomware,
or other similar events and intrusions. We may<b>&#160;</b>experience, decreases in demand and customer orders for our products in all
sales channels, as well as temporary disruptions and closures of our facilities due to decreased demand and government mandates.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">COVID-19 has also impacted various aspects of the supply chain as our suppliers experience
similar business disruptions due to operating restrictions from government mandates. We continue to monitor procurement of raw materials
and components used in the manufacturing, distribution and sale of our products, but continued disruptions in the supply chain due to
COVID-19 may cause difficulty in sourcing materials or unexpected shortages or delays in delivery of raw materials and components, and
may result in increased costs in our supply chain.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">We have implemented plans to reduce spending in certain areas of our business, including
reductions or delays in capital expenditures, reduced trade show participation costs, reduced travel expenditures and may need to take
additional actions to reduce spending in the future.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">We are closely monitoring and assessing the impact of the pandemic on our business. The
extent of the impact on our results of operations, cash flow, liquidity, and financial performance, as well as our ability to execute
near- and long-term business strategies and initiatives, will depend on numerous evolving factors and future developments, which are highly
uncertain and cannot be reasonably predicted.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Given the inherent uncertainty surrounding COVID-19, the pandemic may continue to have
an adverse impact on our business in the near term. Should these conditions persist for a prolonged period, the COVID-19 pandemic, including
any of the above factors and others that are currently unknown, may have a material adverse effect on our business, results of operations,
cash flow, liquidity, and financial condition.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><span style="text-decoration: underline">Liquidity and Capital Resources </span></b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Working Capital &#8211;</i></b> Our working capital increased $728,000 to $9,630,000
at August 31, 2021 from $8,902,000 at February 28, 2021. The increase in working capital was mostly the result of the current period&#8217;s
net income and noncash charges partially offset by purchases of equipment.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company aggregates cash and cash equivalents and marketable securities in managing
its balance sheet and liquidity. For purposes of the following analysis, the total is referred to as &#8220;Cash.&#8221; At August 31,
2021 and February 28, 2021, our working capital included:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center">August 31,<br /> 2021</td><td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt">&#160;</td><td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center">February 28,<br /> 2021</td><td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt">&#160;</td><td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center">Cash<br /> Increase (Decrease)</td><td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; width: 58%; text-align: left">Cash and cash equivalents</td><td style="font: 10pt Cambria,serif; width: 2%">&#160;</td>
    <td style="font: 10pt Cambria,serif; width: 1%; text-align: left">$</td><td style="font: 10pt Cambria,serif; width: 10%; text-align: right">6,143,000</td><td style="font: 10pt Cambria,serif; width: 1%; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; width: 2%">&#160;</td>
    <td style="font: 10pt Cambria,serif; width: 1%; text-align: left">$</td><td style="font: 10pt Cambria,serif; width: 10%; text-align: right">4,084,000</td><td style="font: 10pt Cambria,serif; width: 1%; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; width: 2%">&#160;</td>
    <td style="font: 10pt Cambria,serif; width: 1%; text-align: left">$</td><td style="font: 10pt Cambria,serif; width: 10%; text-align: right">2,059,000</td><td style="font: 10pt Cambria,serif; width: 1%; text-align: left">&#160;</td></tr>
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    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt">Marketable securities</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right">3,554,000</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right">4,563,000</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right">(1,009,000</td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">Total</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right">9,697,000</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right">8,647,000</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right">1,050,000</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The following table summarizes the accounts and the major reasons for the $1,050,000 increase
in &#8220;Cash&#8221;:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse; font-size: 10pt">
  <tr style="vertical-align: bottom">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="padding-bottom: 1pt; font-family: Cambria,serif">&#160;</td>
    <td colspan="2" style="border-bottom: black 1pt solid; font-family: Cambria,serif; text-align: center"><span style="font-size: 8pt"><b>Impact on Cash</b></span></td>
    <td style="padding-bottom: 1pt; font-family: Cambria,serif">&#160;</td>
    <td style="padding-bottom: 1pt; font-family: Cambria,serif">&#160;</td>
    <td style="border-bottom: black 1pt solid; font-family: Cambria,serif; text-align: center"><span style="font-size: 8pt"><b>Reason</b></span></td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="width: 41%; font-family: Cambria,serif">Net income, adjusted for non-cash items</td>
    <td style="width: 3%; font-family: Cambria,serif">&#160;</td>
    <td style="width: 1%; font-family: Cambria,serif">$</td>
    <td style="width: 13%; font-family: Cambria,serif; text-align: right">845,000</td>
    <td style="width: 1%; font-family: Cambria,serif">&#160;</td>
    <td style="width: 2%; font-family: Cambria,serif">&#160;</td>
    <td style="width: 39%">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font-family: Cambria,serif">Accounts receivable decrease</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">276,000</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">Timing of cash receipts.</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font-family: Cambria,serif">Inventories increase</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">(288,000</td>
    <td style="font-family: Cambria,serif">)</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">Required to support backlog.</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font-family: Cambria,serif">Equipment purchases</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">(147,000</td>
    <td style="font-family: Cambria,serif">)</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">Equipment and facilities upgrade.</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font-family: Cambria,serif">Customer deposits increase</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">750,000</td>
    <td>&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">Received for new orders.</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font-family: Cambria,serif">Accounts payable and accrued expenses decrease</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">(563,000</td>
    <td style="font-family: Cambria,serif">)&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">Timing of disbursements.</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font-family: Cambria,serif">Taxes payable increase</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif; text-align: right">150,000</td>
    <td>&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">Timing of disbursements.</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 1pt; font-family: Cambria,serif">Other - net</td>
    <td style="padding-bottom: 1pt; font-family: Cambria,serif">&#160;</td>
    <td style="border-bottom: black 1pt solid; font-family: Cambria,serif">&#160;</td>
    <td style="border-bottom: black 1pt solid; font-family: Cambria,serif; text-align: right">27,000</td>
    <td style="padding-bottom: 1pt; font-family: Cambria,serif">&#160;</td>
    <td style="padding-bottom: 1pt; font-family: Cambria,serif">&#160;</td>
    <td style="padding-bottom: 1pt; font-family: Cambria,serif">Timing of disbursements.</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="padding-bottom: 2.5pt; font-family: Cambria,serif">Net increase in cash</td>
    <td style="padding-bottom: 2.5pt; font-family: Cambria,serif">&#160;</td>
    <td style="border-bottom: black 2.25pt double; font-family: Cambria,serif">$</td>
    <td style="border-bottom: black 2.25pt double; font-family: Cambria,serif; text-align: right">1,050,000</td>
    <td style="padding-bottom: 2.5pt; font-family: Cambria,serif">&#160;</td>
    <td style="padding-bottom: 2.5pt; font-family: Cambria,serif">&#160;</td>
    <td style="padding-bottom: 2.5pt; font-family: Cambria,serif">&#160;</td></tr>
  </table>
<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>


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<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Stockholders&#8217; Equity &#8211;</i></b> Stockholders&#8217; Equity increased $1,651,000
from $10,951,000 at February 28, 2021 to $12,602,000 at August 31, 2021. The increase is a result of the current period&#8217;s net income
of $1,610,000 and $41,000 in additional equity related to stock-based compensation awards.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Operating Activities &#8211;</i></b> We generated $1,197,000 of cash in our operating
activities in the first half of fiscal 2022 compared with using $782,000 of cash in the first half of fiscal 2021. The increase in cash
generated by operating activities was mostly the result of a decrease in accounts receivable and increases in customer deposits and income
taxes payable. These sources of cash were partially offset by an increase in inventories and decreases in accounts payable and accrued
expenses.</p>

<p style="font: 10pt Cambria,serif; margin: 0 9.9pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Investing Activities &#8211;</i></b> For the first half of fiscal 2022, our investing
activities generated $862,000 of cash compared with $176,000 in the first half of fiscal 2021. For the first halves of fiscal years 2022
and 2021, we used $147,000 and $290,000, respectively, for the purchase or manufacture of equipment, furnishings and leasehold improvements.
For the first half of 2022, our marketable securities provided $1,009,000 compared with $367,000 in the first half of fiscal 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; color: #222222"><span style="background-color: white">In the second quarter of fiscal 2021,
we received $100,000 in grant proceeds from the utility which provides our electricity as a result of our completion of certain energy
efficiency related improvements.</span></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Financing Activities &#8211;</i></b> In the first halves of fiscal years 2022 and
2021, we used $0 and $84,000, respectively, for the repayment of our note payable.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">During the first half of fiscal 2021, we borrowed $1,001,640 from a bank under the Paycheck
Protection Program.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Net Increase in Cash and Cash Equivalents &#8211;</i></b> In the first half of fiscal
2022, our cash balance increased by $2,059,000 as compared to $312,000 in the first half of 2021. In the first half of fiscal 2022, our
operating activities generated $1,197,000 of cash and our marketable securities generated $1,009,000 of cash. In addition, we used $147,000
for the purchase or manufacture of equipment, furnishings and leasehold improvements.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><span style="text-decoration: underline">Critical Accounting Policies</span></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The discussion and analysis of the Company&#8217;s financial condition and results of operations
are based upon the unaudited condensed consolidated financial statements, which have been prepared in accordance with accounting principles
generally accepted in the United States of America. The preparation of these financial statements requires the Company to make estimates
and judgments that affect the reported amount of assets and liabilities, revenues and expenses, and related disclosure on contingent assets
and liabilities at the date of the financial statements. Actual results may differ from these estimates under different assumptions and
conditions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Critical accounting policies are defined as those that are reflective of significant judgments
and uncertainties and may potentially result in materially different results under different assumptions and conditions. The Company believes
that critical accounting policies are limited to those described below. For a detailed discussion on the application of these and other
accounting policies see Note 2 to the Company&#8217;s consolidated financial statements included in Form 10-K for the year ended February
28, 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Accounting for Income Taxes</i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company accounts for income taxes under the asset and liability method. Under this
method, deferred income taxes are recognized for the tax consequences of &#8220;temporary differences&#8221; by applying enacted statutory
tax rates applicable to future years to differences between the financial statement carrying amounts and the tax basis of existing assets
and liabilities. If it is more likely than not that some portion or all of a deferred tax asset will not be realized, a valuation allowance
is recognized. We use a recognition threshold and a measurement attribute for financial statement recognition and measurement tax positions
taken or expected to be taken in a return. For those benefits to be recognized, a tax position must be more likely than not to be sustained
upon examination by taxing authorities.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><i>&#160;</i></p>


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<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>Stock-Based Compensation</i></b></p>

<p style="font: 10pt Cambria,serif; margin: 0">The computation of the expense associated with stock-based compensation requires the use
of a valuation model. ASC 718 is a complex accounting standard, the application of which requires significant judgment and the use of
estimates, particularly surrounding Black-Scholes assumptions such as stock price volatility, expected option lives, and expected option
forfeiture rates, to value equity-based compensation. The Company currently uses a Black-Scholes option pricing model to calculate the
fair value of its stock options. The Company primarily uses historical data to determine the assumptions to be used in the Black-Scholes
model and has no reason to believe that future data is likely to differ materially from historical data. However, changes in the assumptions
to reflect future stock price volatility and future stock award exercise experience could result in a change in the assumptions used to
value awards in the future and may result in a material change to the fair value calculation of stock-based awards. ASC 718 requires the
recognition of the fair value of stock compensation in net income. Although every effort is made to ensure the accuracy of our estimates
and assumptions, significant unanticipated changes in those estimates, interpretations and assumptions may result in recording stock option
expense that may materially impact our financial statements for each respective reporting period.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><span style="text-decoration: underline">Impact of New Accounting Pronouncements</span></b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">Accounting pronouncements issued but not yet effective have been deemed to be not applicable
or the adoption of such accounting pronouncements is not expected to have a material impact on the financial statements of the Company.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>



<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="item3"></span></p><p style="font: 10pt Cambria,serif; margin: 0"><b>ITEM 3 - Quantitative and Qualitative Disclosures about Market Risk</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company does not issue or invest in financial instruments or derivatives for trading
or speculative purposes. Substantially all of the operations of the Company are conducted in the United States, and, as such, are not
subject to material foreign currency exchange rate risk. All of our sales transactions are completed in US dollars.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Although the Company's assets included $6,143,000 in cash and $3,554,000 in marketable
securities, the market rate risk associated with changing interest rates in the United States is not material.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>



<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="item4"></span></p><p style="font: 10pt Cambria,serif; margin: 0"><b>ITEM 4 &#8211; Controls and Procedures</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">The Company has established and maintains &#8220;disclosure controls and procedures&#8221;
(as those terms are defined in Rules 13a &#8211;15(e) and 15d-15(e) under the Securities and Exchange Act of 1934 (the &#8220;Exchange
Act&#8221;). Christopher L. Coccio, Chief Executive Officer (principal executive) and Stephen J. Bagley, Chief Financial Officer (principal
accounting officer) of the Company, have evaluated the Company&#8217;s disclosure controls and procedures as of August 31, 2021. Based
on this evaluation, they have concluded that the Company&#8217;s disclosure controls and procedures were effective to ensure that information
required to be disclosed by the Company in reports that it files or submits under the Exchange Act is (1) recorded, processed, summarized
and reported within the time periods specified in Securities and Exchange Commission rules and forms, and (2) accumulated and communicated
to Management, including our Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding timely disclosure.</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">In addition, there were no changes in the Company&#8217;s internal controls
over financial reporting during the second fiscal quarter of 2022 that have materially affected, or are reasonably likely to materially
affect, internal controls over financial reporting<span style="font-size: 10pt">.</span></p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>


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<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="partII"></span></p><p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>PART II - OTHER INFORMATION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>&#160;</b></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.6in"><b>Item 1.</b></td><td><b>Legal Proceedings</b></td></tr></table>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">None</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.6in"><b>Item 1A.</b></td><td><b>Risk Factors</b></td></tr></table>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">Note Required for Smaller Reporting Companies</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.6in"><b>Item 2.</b></td><td><b>Unregistered Sales of Equity Securities and Use of Proceeds</b></td></tr></table>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">None</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.6in"><b>Item 3.</b></td><td><b>Defaults Upon Senior Securities</b></td></tr></table>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">None</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.6in"><b>Item 4.</b></td><td><b>Mine Safety Disclosures</b></td></tr></table>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">None</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.6in"><b>Item 5.</b></td><td><b>Other Information</b></td></tr></table>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">None</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria,serif; width: 100%; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.6in"><b>Item 6.</b></td><td><b>Exhibits and Reports</b></td></tr></table>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0"><a href="ex31-1.htm">31.1</a> &#8211; <a href="ex31-2.htm">31.2</a> &#8211; Rule 13a - 14(a)/15d &#8211; 14(a) Certification</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0"><a href="ex32-1.htm">32.1</a> &#8211; <a href="ex32-2.htm">32.2</a> &#8211; Certification Pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002</p>

<p style="font: 10pt Cambria,serif; margin: 0 0.8pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">101 &#8211; The financial information from the Company's Quarterly Report on Form 10-Q
for the fiscal quarter ended August 31, 2021 formatted in Inline XBRL: (i) Condensed Consolidated Balance Sheets, (ii) Condensed Consolidated
Statements of Income, (iii) Condensed Consolidated Statements of Stockholders&#8217; Equity, (iv) Condensed Consolidated Statements of
Cash Flows, and (v) Notes to Unaudited Condensed Consolidated Financial Statements.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">104 &#8211; Cover Page Interactive Data File formatted in Inline XBRL and contained in
Exhibit 101.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>


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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>



<p style="margin-top: 0pt; margin-bottom: 0pt"><span id="sigs"></span></p><p style="font: 10pt Cambria,serif; margin: 0; text-align: center"><b>SIGNATURES</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">In accordance with the requirements of the Exchange Act, the registrant has caused this
report to be signed on its behalf by the undersigned, thereunto duly authorized.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Dated: October 13, 2021</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 0 0 2.5in; text-indent: 0.5in">&#160;</p>

<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse; font-size: 10pt">
  <tr style="vertical-align: top">
    <td style="width: 50%; font-family: Cambria,serif">&#160;</td>
    <td style="width: 6%; font-family: Cambria,serif">&#160;</td>
    <td style="width: 44%; font-family: Cambria,serif">SONO-TEK CORPORATION</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;(Registrant)</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">By:</td>
    <td style="border-bottom: black 1pt solid; font-family: Cambria,serif">/s/ Christopher L. Coccio</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">Christopher L. Coccio</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">Chief Executive Officer</td></tr>
  <tr style="vertical-align: top">
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td>
    <td style="font-family: Cambria,serif">&#160;</td></tr>
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<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>ex31-1.htm
<DESCRIPTION>RULE 13A-14/15D 14(A) CERTIFICATION
<TEXT>
<HTML>
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     <TITLE></TITLE>
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<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: right">Exhibit 31.1</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: right">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>RULE 13a-14/15d &ndash; 14(a) CERTIFICATION</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">I, Christopher L. Coccio, Chief Executive Officer, certify that:</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">1.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">I have reviewed this quarterly report on Form 10-Q of Sono-Tek Corporation;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.3in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">2.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">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;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.3in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">3.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">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;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.3in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
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    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">4.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">Sono-Tek Corporation&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 &ndash; 15(e) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f) for the issuer and have:</TD></TR>
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<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">a)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">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;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.6in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">b)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">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;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.6in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">c)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">Evaluated the effectiveness of the registrant&rsquo;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.6in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">d)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">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</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 1in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">5.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">Sono-Tek Corporation&rsquo;s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant&rsquo;s auditors and the audit committee of the registrant&rsquo;s board of directors (or persons performing equivalent functions):</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">a)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">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</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.6in; text-indent: -0.3in">&nbsp;</P>

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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">b)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&rsquo;s internal controls over financial reporting.</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 1in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 61%; padding-right: 0.8pt; font-family: Cambria,serif">Date:&nbsp;&nbsp;October 13, 2021</TD>
    <TD STYLE="width: 39%; padding-right: 0.8pt; font-family: Cambria,serif"><U>/s/ Christopher L. Coccio</U></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; font-family: Cambria,serif">Christopher L. Coccio</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; font-family: Cambria,serif">Chief Executive Officer</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>


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<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>ex31-2.htm
<DESCRIPTION>RULE 13A-14/15D 14(A) CERTIFICATION
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
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<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: right">Exhibit 31.2</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: right">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>RULE 13a-14/15d &ndash; 14(a) CERTIFICATION</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">I, Stephen J. Bagley, Chief Financial Officer, certify that:</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">1.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">I have reviewed this quarterly report on Form 10-Q of Sono-Tek Corporation;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.3in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">2.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">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;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.3in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">3.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">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;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.3in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">4.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">Sono-Tek Corporation&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 &ndash; 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:</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">a)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">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;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.6in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">b)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">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;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.6in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">c)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">Evaluated the effectiveness of the registrant&rsquo;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.6in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">d)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">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</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 1in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">5.</TD>
    <TD STYLE="width: 97%; padding-right: 0.8pt; font-family: Cambria,serif">Sono-Tek Corporation&rsquo;s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant&rsquo;s auditors and the audit committee of the registrant&rsquo;s board of directors (or persons performing equivalent functions):</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">a)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">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</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 0.6in; text-indent: -0.3in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 3%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">b)</TD>
    <TD STYLE="width: 94%; padding-right: 0.8pt; font-family: Cambria,serif">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&rsquo;s internal controls over financial reporting.</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 1in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 59%; padding-right: 0.8pt; font-family: Cambria,serif">Date:&nbsp;&nbsp;October 13, 2021</TD>
    <TD STYLE="width: 41%; padding-right: 0.8pt; font-family: Cambria,serif"><U>/s/ Stephen J. Bagley</U></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; font-family: Cambria,serif">Stephen J. Bagley</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; font-family: Cambria,serif">Chief Financial Officer</TD></TR>
  </TABLE>
<P STYLE="font: 12pt Cambria,serif; margin: 0">&nbsp;</P>


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

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: right">Exhibit 32.1</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>CERTIFICATION PURSUANT TO</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>18 U.S.C. SECTION 1350,</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>AS ADOPTED PURSUANT TO</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">In connection with the Quarterly Report of Sono-Tek Corporation (the &ldquo;Company&rdquo;)
on Form 10Q for the period ended August 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the &ldquo;Report&rdquo;).
I, Christopher L. Coccio, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to
section 906 of the Sarbanes-Oxley Act of 2002, that:</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 6%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">(1)</TD>
    <TD STYLE="width: 91%; padding-right: 0.8pt; font-family: Cambria,serif">The Report fully complies with the requirements of section 13(a) and 15(d) of the Securities Exchange Act of 1934; and</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 6%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">(2)</TD>
    <TD STYLE="width: 91%; padding-right: 0.8pt; font-family: Cambria,serif">The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt">Date: October 13, 2021</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt"><U>/s/ Christopher L. Coccio</U></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt">Christopher L. Coccio</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt">Chief Executive Officer</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>


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

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: right">Exhibit 32.2</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>CERTIFICATION PURSUANT TO</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>18 U.S.C. SECTION 1350,</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>AS ADOPTED PURSUANT TO</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0; text-align: center"><B>SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002</B></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">In connection with the Quarterly Report of Sono-Tek Corporation (the &ldquo;Company&rdquo;)
on Form 10Q for the period ended August 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the &ldquo;Report&rdquo;).
I, Stephen J. Bagley, Chief Financial Officer, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the
Sarbanes-Oxley Act of 2002, that:</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 6%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">(1)</TD>
    <TD STYLE="width: 91%; padding-right: 0.8pt; font-family: Cambria,serif">The Report fully complies with the requirements of section 13(a) and 15(d) of the Securities Exchange Act of 1934; and</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 6%; font-family: Cambria,serif">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt; font-family: Cambria,serif">(2)</TD>
    <TD STYLE="width: 91%; padding-right: 0.8pt; font-family: Cambria,serif">The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt">Date: October 13, 2021</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt">&nbsp;</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt"><U>/s/ Stephen J. Bagley</U></P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt">Stephen J. Bagley</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0 0 0 67.5pt; text-indent: -67.5pt">Chief Financial Officer</P>

<P STYLE="font: 10pt Cambria,serif; margin: 0">&nbsp;</P>


</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>sonotek-logo.jpg
<DESCRIPTION>GRAPHIC
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	<link:roleType roleURI="http://sono-tek.com/role/Note6StockBasedCompensationTables" id="Note6StockBasedCompensationTables">
	  <link:definition>00000022 - Disclosure - NOTE 6: STOCK BASED COMPENSATION (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Note7EarningsPerShareTables" id="Note7EarningsPerShareTables">
	  <link:definition>00000023 - Disclosure - NOTE 7: EARNINGS PER SHARE (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Note8LongTermDebtTables" id="Note8LongTermDebtTables">
	  <link:definition>00000024 - Disclosure - NOTE 8: LONG TERM DEBT (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Note10CustomerConcentrationsAndForeignSalesTables" id="Note10CustomerConcentrationsAndForeignSalesTables">
	  <link:definition>00000025 - Disclosure - NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/SignificantAccountingPolicies-FairValuesOfFinancialAssetsOfCompanyDetails" id="SignificantAccountingPolicies-FairValuesOfFinancialAssetsOfCompanyDetails">
	  <link:definition>00000026 - Disclosure - Significant Accounting Policies - Fair values of financial assets of the Company (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Note2SignificantAccountingPoliciesDetailsNarrative" id="Note2SignificantAccountingPoliciesDetailsNarrative">
	  <link:definition>00000027 - Disclosure - NOTE 2: SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/RevenueRecognition-SalesRevenueByProductLineDetails" id="RevenueRecognition-SalesRevenueByProductLineDetails">
	  <link:definition>00000028 - Disclosure - Revenue Recognition - Sales Revenue by Product Line (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Note3RevenueRecognitionDetailsNarrative" id="Note3RevenueRecognitionDetailsNarrative">
	  <link:definition>00000029 - Disclosure - NOTE 3: REVENUE RECOGNITION (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Inventories-ScheduleOfInventoryCurrentDetails" id="Inventories-ScheduleOfInventoryCurrentDetails">
	  <link:definition>00000030 - Disclosure - Inventories - Schedule of Inventory, Current (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Note5StockOptionsDetailsNarrative" id="Note5StockOptionsDetailsNarrative">
	  <link:definition>00000031 - Disclosure - NOTE 5: STOCK OPTIONS (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Weighted-averageBlack-scholesAssumptionsDetails" id="Weighted-averageBlack-scholesAssumptionsDetails">
	  <link:definition>00000032 - Disclosure - Weighted-average Black-Scholes assumptions (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Note6StockBasedCompensationDetailsNarrative" id="Note6StockBasedCompensationDetailsNarrative">
	  <link:definition>00000033 - Disclosure - NOTE 6: STOCK BASED COMPENSATION (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/EarningsPerShare-ComputationOfBasicAndDilutedEarningsPerShareDetails" id="EarningsPerShare-ComputationOfBasicAndDilutedEarningsPerShareDetails">
	  <link:definition>00000034 - Disclosure - Earnings Per Share - Computation of basic and diluted earnings per share (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/LongTermDebt-ScheduleOfLong-termDebtDetails" id="LongTermDebt-ScheduleOfLong-termDebtDetails">
	  <link:definition>00000035 - Disclosure - Long Term Debt - Schedule of Long-Term Debt (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Note9RevolvingLineOfCreditDetailsNarrative" id="Note9RevolvingLineOfCreditDetailsNarrative">
	  <link:definition>00000036 - Disclosure - NOTE 9: REVOLVING LINE OF CREDIT (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/CustomerConcentrationsAndForeignSales-ScheduleOfCustomerConcentrationsAndForeignSalesDetails" id="CustomerConcentrationsAndForeignSales-ScheduleOfCustomerConcentrationsAndForeignSalesDetails">
	  <link:definition>00000037 - Disclosure - Customer Concentrations and Foreign Sales - Schedule of Customer Concentrations and Foreign Sales (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://sono-tek.com/role/Note10CustomerConcentrationsAndForeignSalesDetailsNarrative" id="Note10CustomerConcentrationsAndForeignSalesDetailsNarrative">
	  <link:definition>00000038 - Disclosure - NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:linkbaseRef xlink:type="simple" xlink:href="sotk-20210831_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links" />
	<link:linkbaseRef xlink:type="simple" xlink:href="sotk-20210831_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links" />
	<link:linkbaseRef xlink:type="simple" xlink:href="sotk-20210831_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links" />
	<link:linkbaseRef xlink:type="simple" xlink:href="sotk-20210831_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links" />
      </appinfo>
    </annotation>
    <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
    <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
    <import namespace="http://xbrl.sec.gov/dei/2021" schemaLocation="https://xbrl.sec.gov/dei/2021/dei-2021.xsd" />
    <import namespace="http://fasb.org/us-gaap/2021-01-31" schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd" />
    <import namespace="http://fasb.org/us-types/2021-01-31" schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-types-2021-01-31.xsd" />
    <import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd" />
    <import namespace="http://xbrl.sec.gov/country/2021" schemaLocation="https://xbrl.sec.gov/country/2021/country-2021.xsd" />
    <import namespace="http://fasb.org/srt/2021-01-31" schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd" />
    <import namespace="http://fasb.org/srt-types/2021-01-31" schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd" />
    <element id="sotk_EquipmentAndFurnishingsMember" name="EquipmentAndFurnishingsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_DomesticPatentsMember" name="DomesticPatentsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_ForeignPatentsMember" name="ForeignPatentsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_FluxingSystemsMember" name="FluxingSystemsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_IntegratedCoatingSystemsMember" name="IntegratedCoatingSystemsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_MultiAxisCoatingSystemsMember" name="MultiAxisCoatingSystemsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_OemSystemsMember" name="OemSystemsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_OtherProductLineMember" name="OtherProductLineMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_ProductLineMember" name="ProductLineMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="sotk_StockIncentivePlan2003Member" name="StockIncentivePlan2003Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_EmployeesAndDirectorsMember" name="EmployeesAndDirectorsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="sotk_FiveCustomersMember" name="FiveCustomersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_SixCustomersMember" name="SixCustomersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_BuildingsNet" name="BuildingsNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_EquipmentFurnishingsLeaseholdImprovementsNet" name="EquipmentFurnishingsLeaseholdImprovementsNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="sotk_GainOnPayrollProtectionProgramLoanForgiveness" name="GainOnPayrollProtectionProgramLoanForgiveness" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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</schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>8
<FILENAME>sotk-20210831_cal.xml
<DESCRIPTION>XBRL CALCULATION FILE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 5.10a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
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    <link:roleRef roleURI="http://sono-tek.com/role/BalanceSheets" xlink:href="sotk-20210831.xsd#BalanceSheets" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/BalanceSheetsParenthetical" xlink:href="sotk-20210831.xsd#BalanceSheetsParenthetical" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/StatementsOfIncome" xlink:href="sotk-20210831.xsd#StatementsOfIncome" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/StatementsOfStockholdersEquityParenthetical" xlink:href="sotk-20210831.xsd#StatementsOfStockholdersEquityParenthetical" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/StatementsOfStockholdersEquity" xlink:href="sotk-20210831.xsd#StatementsOfStockholdersEquity" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/StatementsOfCashFlows" xlink:href="sotk-20210831.xsd#StatementsOfCashFlows" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/Note1BusinessDescription" xlink:href="sotk-20210831.xsd#Note1BusinessDescription" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/Note2SignificantAccountingPolicies" xlink:href="sotk-20210831.xsd#Note2SignificantAccountingPolicies" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/Note3RevenueRecognition" xlink:href="sotk-20210831.xsd#Note3RevenueRecognition" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/Note4Inventories" xlink:href="sotk-20210831.xsd#Note4Inventories" xlink:type="simple" />
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    <link:roleRef roleURI="http://sono-tek.com/role/Note3RevenueRecognitionTables" xlink:href="sotk-20210831.xsd#Note3RevenueRecognitionTables" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/Note4InventoriesTables" xlink:href="sotk-20210831.xsd#Note4InventoriesTables" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/Note6StockBasedCompensationTables" xlink:href="sotk-20210831.xsd#Note6StockBasedCompensationTables" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/Note7EarningsPerShareTables" xlink:href="sotk-20210831.xsd#Note7EarningsPerShareTables" xlink:type="simple" />
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    <link:roleRef roleURI="http://sono-tek.com/role/Note10CustomerConcentrationsAndForeignSalesTables" xlink:href="sotk-20210831.xsd#Note10CustomerConcentrationsAndForeignSalesTables" xlink:type="simple" />
    <link:roleRef roleURI="http://sono-tek.com/role/SignificantAccountingPolicies-FairValuesOfFinancialAssetsOfCompanyDetails" xlink:href="sotk-20210831.xsd#SignificantAccountingPolicies-FairValuesOfFinancialAssetsOfCompanyDetails" xlink:type="simple" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_EquipmentAndFurnishingsMember_lbl" xml:lang="en-US">Equipment and Furnishings</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xml:lang="en-US">Fair Value Hierarchy and NAV [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="us-gaap_FairValueInputsLevel1Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel1Member" xlink:to="us-gaap_FairValueInputsLevel1Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xml:lang="en-US">Level 1</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="us-gaap_FairValueInputsLevel2Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel2Member" xlink:to="us-gaap_FairValueInputsLevel2Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xml:lang="en-US">Level 2</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="us-gaap_FairValueInputsLevel3Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel3Member" xlink:to="us-gaap_FairValueInputsLevel3Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xml:lang="en-US">Level 3</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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="sotk-20210831.xsd#sotk_DomesticPatentsMember" xlink:label="sotk_DomesticPatentsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_DomesticPatentsMember" xlink:to="sotk_DomesticPatentsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_DomesticPatentsMember_lbl" xml:lang="en-US">Domestic Patents</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_ForeignPatentsMember" xlink:label="sotk_ForeignPatentsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_ForeignPatentsMember" xlink:to="sotk_ForeignPatentsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_ForeignPatentsMember_lbl" xml:lang="en-US">Foreign Patents</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="srt_ProductOrServiceAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ProductOrServiceAxis" xlink:to="srt_ProductOrServiceAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ProductOrServiceAxis_lbl" xml:lang="en-US">Product and Service [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_FluxingSystemsMember" xlink:label="sotk_FluxingSystemsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_FluxingSystemsMember" xlink:to="sotk_FluxingSystemsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_FluxingSystemsMember_lbl" xml:lang="en-US">Fluxing Systems</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_IntegratedCoatingSystemsMember" xlink:label="sotk_IntegratedCoatingSystemsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_IntegratedCoatingSystemsMember" xlink:to="sotk_IntegratedCoatingSystemsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_IntegratedCoatingSystemsMember_lbl" xml:lang="en-US">Integrated Coating Systems</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_MultiAxisCoatingSystemsMember" xlink:label="sotk_MultiAxisCoatingSystemsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_MultiAxisCoatingSystemsMember" xlink:to="sotk_MultiAxisCoatingSystemsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_MultiAxisCoatingSystemsMember_lbl" xml:lang="en-US">Multi-Axis Coating Systems</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_OemSystemsMember" xlink:label="sotk_OemSystemsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_OemSystemsMember" xlink:to="sotk_OemSystemsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_OemSystemsMember_lbl" xml:lang="en-US">OEM Systems</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_OtherProductLineMember" xlink:label="sotk_OtherProductLineMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_OtherProductLineMember" xlink:to="sotk_OtherProductLineMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_OtherProductLineMember_lbl" xml:lang="en-US">Other Product Line</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_ProductLineMember" xlink:label="sotk_ProductLineMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_ProductLineMember" xlink:to="sotk_ProductLineMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_ProductLineMember_lbl" xml:lang="en-US">Total Product Line</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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="sotk-20210831.xsd#sotk_StockIncentivePlan2013Member" xlink:label="sotk_StockIncentivePlan2013Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_StockIncentivePlan2013Member" xlink:to="sotk_StockIncentivePlan2013Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_StockIncentivePlan2013Member_lbl" xml:lang="en-US">2013 Stock Incentive Plan ("2013 Plan")</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_StockIncentivePlan2003Member" xlink:label="sotk_StockIncentivePlan2003Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_StockIncentivePlan2003Member" xlink:to="sotk_StockIncentivePlan2003Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_StockIncentivePlan2003Member_lbl" xml:lang="en-US">2003 Stock Incentive Plan ("2003 Plan")</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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="sotk-20210831.xsd#sotk_EmployeesAndDirectorsMember" xlink:label="sotk_EmployeesAndDirectorsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_EmployeesAndDirectorsMember" xlink:to="sotk_EmployeesAndDirectorsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_EmployeesAndDirectorsMember_lbl" xml:lang="en-US">Employees And Directors [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.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/2021/elts/srt-2021-01-31.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/2021/elts/srt-2021-01-31.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="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UnsecuredDebtMember" xlink:label="us-gaap_UnsecuredDebtMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnsecuredDebtMember" xlink:to="us-gaap_UnsecuredDebtMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnsecuredDebtMember_lbl" xml:lang="en-US">Unsecured Debt [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LetterOfCreditMember" xlink:label="us-gaap_LetterOfCreditMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LetterOfCreditMember" xlink:to="us-gaap_LetterOfCreditMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LetterOfCreditMember_lbl" xml:lang="en-US">Letter of Credit [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="srt_StatementGeographicalAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_StatementGeographicalAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_StatementGeographicalAxis_lbl" xml:lang="en-US">Geographical [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_AsiaPacificMember" xlink:label="srt_AsiaPacificMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_AsiaPacificMember" xlink:to="srt_AsiaPacificMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_AsiaPacificMember_lbl" xml:lang="en-US">Asia Pacific (APAC)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EMEAMember" xlink:label="us-gaap_EMEAMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EMEAMember" xlink:to="us-gaap_EMEAMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EMEAMember_lbl" xml:lang="en-US">Europe, Middle East, Asia (EMEA)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_LatinAmericaMember" xlink:label="srt_LatinAmericaMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_LatinAmericaMember" xlink:to="srt_LatinAmericaMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_LatinAmericaMember_lbl" xml:lang="en-US">Latin America</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SalesRevenueNetMember" xlink:label="us-gaap_SalesRevenueNetMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SalesRevenueNetMember" xlink:to="us-gaap_SalesRevenueNetMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SalesRevenueNetMember_lbl" xml:lang="en-US">Sales Revenue</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="us-gaap_ConcentrationRiskByTypeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskByTypeAxis" xlink:to="us-gaap_ConcentrationRiskByTypeAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskByTypeAxis_lbl" xml:lang="en-US">Concentration Risk Type [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_ForeignCustomersMember" xlink:label="sotk_ForeignCustomersMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_ForeignCustomersMember" xlink:to="sotk_ForeignCustomersMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_ForeignCustomersMember_lbl" xml:lang="en-US">Foreign Customers</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.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="sotk-20210831.xsd#sotk_TwoCustomersMember" xlink:label="sotk_TwoCustomersMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_TwoCustomersMember" xlink:to="sotk_TwoCustomersMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_TwoCustomersMember_lbl" xml:lang="en-US">Two Customers</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CustomerConcentrationRiskMember" xlink:label="us-gaap_CustomerConcentrationRiskMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CustomerConcentrationRiskMember" xlink:to="us-gaap_CustomerConcentrationRiskMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CustomerConcentrationRiskMember_lbl" xml:lang="en-US">Customer Concentration Risk [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_FiveCustomersMember" xlink:label="sotk_FiveCustomersMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_FiveCustomersMember" xlink:to="sotk_FiveCustomersMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_FiveCustomersMember_lbl" xml:lang="en-US">Five Customers</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableMember" xlink:label="us-gaap_AccountsReceivableMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableMember" xlink:to="us-gaap_AccountsReceivableMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsReceivableMember_lbl" xml:lang="en-US">Accounts Receivables</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_SixCustomersMember" xlink:label="sotk_SixCustomersMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_SixCustomersMember" xlink:to="sotk_SixCustomersMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_SixCustomersMember_lbl" xml:lang="en-US">Six Customers</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CoverAbstract" xlink:label="dei_CoverAbstract" />
      <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>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentType" xlink:label="dei_DocumentType" />
      <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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.xsd#dei_EntityAddressAddressLine3" xlink:label="dei_EntityAddressAddressLine3" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine3" xlink:to="dei_EntityAddressAddressLine3_lbl" xlink:type="arc" />
      <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>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCityOrTown" xlink:label="dei_EntityAddressCityOrTown" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl" xlink:type="arc" />
      <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/2021/dei-2021.xsd#dei_EntityAddressStateOrProvince" xlink:label="dei_EntityAddressStateOrProvince" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl" xlink:type="arc" />
      <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>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCountry" xlink:label="dei_EntityAddressCountry" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCountry" xlink:to="dei_EntityAddressCountry_lbl" xlink:type="arc" />
      <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>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressPostalZipCode" xlink:label="dei_EntityAddressPostalZipCode" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressPostalZipCode_lbl" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CountryRegion" xlink:label="dei_CountryRegion" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CountryRegion" xlink:to="dei_CountryRegion_lbl" xlink:type="arc" />
      <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>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CityAreaCode" xlink:label="dei_CityAreaCode" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CityAreaCode_lbl" xml:lang="en-US">City Area Code</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_LocalPhoneNumber" xlink:label="dei_LocalPhoneNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_LocalPhoneNumber_lbl" xml:lang="en-US">Local Phone Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Extension" xlink:label="dei_Extension" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Extension" xlink:to="dei_Extension_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_Extension_lbl" xml:lang="en-US">Extension</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_WrittenCommunications" xlink:label="dei_WrittenCommunications" />
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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>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_PreCommencementTenderOffer_lbl" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_NoTradingSymbolFlag" xlink:label="dei_NoTradingSymbolFlag" />
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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>
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      <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/2021/dei-2021.xsd#dei_Security12gTitle" xlink:label="dei_Security12gTitle" />
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      <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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.xsd#dei_EntityShellCompany" xlink:label="dei_EntityShellCompany" />
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      <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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.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/2021/dei-2021.xsd#dei_DocumentsIncorporatedByReferenceTextBlock" xlink:label="dei_DocumentsIncorporatedByReferenceTextBlock" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MarketableSecuritiesCurrent_lbl" xml:lang="en-US">Marketable securities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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" />
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      <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" />
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      <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 expenses and other current assets</link:label>
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      <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_Land_lbl" xml:lang="en-US">Land</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_BuildingsNet" xlink:to="sotk_BuildingsNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_BuildingsNet_lbl" xml:lang="en-US">Buildings, net</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_EquipmentFurnishingsLeaseholdImprovementsNet" xlink:label="sotk_EquipmentFurnishingsLeaseholdImprovementsNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_EquipmentFurnishingsLeaseholdImprovementsNet" xlink:to="sotk_EquipmentFurnishingsLeaseholdImprovementsNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_EquipmentFurnishingsLeaseholdImprovementsNet_lbl" xml:lang="en-US">Equipment, furnishings and building improvements, net</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:to="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xml:lang="en-US">Intangible assets, net</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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 asset</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerLiabilityCurrent" xlink:to="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xml:lang="en-US">Customer deposits</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="us-gaap_AccruedIncomeTaxesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedIncomeTaxesCurrent" xlink:to="us-gaap_AccruedIncomeTaxesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedIncomeTaxesCurrent_lbl" xml:lang="en-US">Income taxes payable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:to="us-gaap_DeferredIncomeTaxLiabilitiesNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet_lbl" xml:lang="en-US">Deferred tax liability</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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 maturities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="us-gaap_StockholdersEquityAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xml:lang="en-US">Stockholders&#8217; Equity</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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, $.01 par value; 25,000,000 shares authorized, 15,531,285 and 15,452,656 shares issued and outstanding, respectively</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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 earnings</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_StockholdersEquity_lbl" xml:lang="en-US">Total stockholders&#8217; equity</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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">Allowance for doubtful accounts receivable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Revenues" xlink:label="us-gaap_Revenues" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Revenues_lbl" xml:lang="en-US">Net Sales</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="us-gaap_CostOfRevenue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfRevenue" xlink:to="us-gaap_CostOfRevenue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CostOfRevenue_lbl" xml:lang="en-US">Cost of Goods Sold</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="us-gaap_OperatingExpensesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpensesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xml:lang="en-US">Operating Expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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 product development costs</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="us-gaap_SellingAndMarketingExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SellingAndMarketingExpense" xlink:to="us-gaap_SellingAndMarketingExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SellingAndMarketingExpense_lbl" xml:lang="en-US">Marketing and selling expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="us-gaap_GeneralAndAdministrativeExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpense" xlink:to="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xml:lang="en-US">General and administrative costs</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xml:lang="en-US">Weighted Average Shares - Basic</link:label>
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="us-gaap_IncreaseDecreaseInInventories" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInInventories" xlink:to="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xml:lang="en-US">Inventories</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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 and other current assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xml:lang="en-US">Accounts payable and accrued expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:to="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xml:lang="en-US">Customer deposits</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedTaxesPayable" xlink:label="us-gaap_IncreaseDecreaseInAccruedTaxesPayable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccruedTaxesPayable" xlink:to="us-gaap_IncreaseDecreaseInAccruedTaxesPayable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncreaseDecreaseInAccruedTaxesPayable_lbl" xml:lang="en-US">Income taxes payable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">Net Cash Provided by (Used in) Operating Activities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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">Purchase of equipment, furnishings and leasehold improvements</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_ProceedsFromCapitalExpenditureGrant" xlink:label="sotk_ProceedsFromCapitalExpenditureGrant" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_ProceedsFromCapitalExpenditureGrant" xlink:to="sotk_ProceedsFromCapitalExpenditureGrant_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_ProceedsFromCapitalExpenditureGrant_lbl" xml:lang="en-US">Capital expenditure grant proceeds</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:to="us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_lbl" xml:lang="en-US">Sale (purchase) of marketable securities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">Net Cash Provided by Investing Activities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromNotesPayable" xlink:label="us-gaap_ProceedsFromNotesPayable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromNotesPayable" xlink:to="us-gaap_ProceedsFromNotesPayable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xml:lang="en-US">Proceeds from note payable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">Repayment of long term debt</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">Net Cash Provided by Financing Activities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">NET INCREASE IN CASH AND CASH EQUIVALENTS</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract" xlink:label="us-gaap_CashAndCashEquivalentsAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAbstract" xlink:to="us-gaap_CashAndCashEquivalentsAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsAbstract_lbl" xml:lang="en-US">CASH AND CASH EQUIVALENTS</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xml:lang="en-US">Beginning of period</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2_lbl" xml:lang="en-US">End of period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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 CASH FLOW DISCLOSURE:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxesPaidNet" xlink:label="us-gaap_IncomeTaxesPaidNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxesPaidNet" xlink:to="us-gaap_IncomeTaxesPaidNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xml:lang="en-US">Income Taxes Paid</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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">NOTE 1: BUSINESS DESCRIPTION</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">NOTE 2: SIGNIFICANT ACCOUNTING POLICIES</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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">NOTE 3: REVENUE RECOGNITION</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryDisclosureAbstract" xlink:label="us-gaap_InventoryDisclosureAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryDisclosureAbstract" xlink:to="us-gaap_InventoryDisclosureAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InventoryDisclosureAbstract_lbl" xml:lang="en-US">Inventory Disclosure [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryDisclosureTextBlock" xlink:label="us-gaap_InventoryDisclosureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryDisclosureTextBlock" xlink:to="us-gaap_InventoryDisclosureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InventoryDisclosureTextBlock_lbl" xml:lang="en-US">NOTE 4: INVENTORIES</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="us-gaap_EquityAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityAbstract" xlink:to="us-gaap_EquityAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityAbstract_lbl" xml:lang="en-US">Equity [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:to="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xml:lang="en-US">NOTE 5: STOCK OPTIONS</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock" xlink:label="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock" xlink:to="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_lbl" xml:lang="en-US">NOTE 6: STOCK BASED COMPENSATION</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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">NOTE 7: EARNINGS PER SHARE</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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">NOTE 8: LONG TERM DEBT</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShortTermDebtTextBlock" xlink:label="us-gaap_ShortTermDebtTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermDebtTextBlock" xlink:to="us-gaap_ShortTermDebtTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortTermDebtTextBlock_lbl" xml:lang="en-US">NOTE 9: REVOLVING LINE OF CREDIT</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RisksAndUncertaintiesAbstract" xlink:label="us-gaap_RisksAndUncertaintiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RisksAndUncertaintiesAbstract" xlink:to="us-gaap_RisksAndUncertaintiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RisksAndUncertaintiesAbstract_lbl" xml:lang="en-US">Risks and Uncertainties [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskDisclosureTextBlock" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskDisclosureTextBlock" xlink:to="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xml:lang="en-US">NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReceivablesPolicyTextBlock" xlink:label="us-gaap_ReceivablesPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReceivablesPolicyTextBlock" xlink:to="us-gaap_ReceivablesPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReceivablesPolicyTextBlock_lbl" xml:lang="en-US">Accounts Receivable, net</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:to="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xml:lang="en-US">Cash and Cash Equivalents</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="us-gaap_ConsolidationPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConsolidationPolicyTextBlock" xlink:to="us-gaap_ConsolidationPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xml:lang="en-US">Consolidation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerSharePolicyTextBlock" xlink:to="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xml:lang="en-US">Earnings Per Share</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock" xlink:label="sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock" xlink:to="sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock_lbl" xml:lang="en-US">Equipment, Furnishings and Leasehold Improvements</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:to="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xml:lang="en-US">Fair Value of Financial Instruments</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="us-gaap_IncomeTaxPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxPolicyTextBlock" xlink:to="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xml:lang="en-US">Income Taxes</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" xlink:label="us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" xlink:to="us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_lbl" xml:lang="en-US">Intangible Assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:label="us-gaap_InventoryPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryPolicyTextBlock" xlink:to="us-gaap_InventoryPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InventoryPolicyTextBlock_lbl" xml:lang="en-US">Inventories</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xml:lang="en-US">Land and Buildings</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock" xlink:to="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_lbl" xml:lang="en-US">Long-Lived Assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="us-gaap_UseOfEstimates" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US">Management Estimates</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:to="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xml:lang="en-US">New Accounting Pronouncements</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StandardProductWarrantyPolicy" xlink:label="us-gaap_StandardProductWarrantyPolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StandardProductWarrantyPolicy" xlink:to="us-gaap_StandardProductWarrantyPolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StandardProductWarrantyPolicy_lbl" xml:lang="en-US">Product Warranty</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:label="us-gaap_PriorPeriodReclassificationAdjustmentDescription" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:to="us-gaap_PriorPeriodReclassificationAdjustmentDescription_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PriorPeriodReclassificationAdjustmentDescription_lbl" xml:lang="en-US">Reclassifications</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:to="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" xml:lang="en-US">Research and Product Development Expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRecognitionPolicyTextBlock" xlink:to="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xml:lang="en-US">Revenue Recognition</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_ShippingAndHandlingPolicyTextBlock" xlink:label="sotk_ShippingAndHandlingPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_ShippingAndHandlingPolicyTextBlock" xlink:to="sotk_ShippingAndHandlingPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_ShippingAndHandlingPolicyTextBlock_lbl" xml:lang="en-US">Shipping and Handling Costs</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:to="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl" xml:lang="en-US">Stock-Based Compensation</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_UncertaintiesPolicyTextBlock" xlink:label="sotk_UncertaintiesPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_UncertaintiesPolicyTextBlock" xlink:to="sotk_UncertaintiesPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_UncertaintiesPolicyTextBlock_lbl" xml:lang="en-US">Uncertainties</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:to="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_lbl" xml:lang="en-US">Significant Accounting Policies - Fair values of financial assets of the Company</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock" xlink:label="us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock" xlink:to="us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_lbl" xml:lang="en-US">Revenue Recognition - Sales Revenue by Product Line</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:label="us-gaap_ScheduleOfInventoryCurrentTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:to="us-gaap_ScheduleOfInventoryCurrentTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfInventoryCurrentTableTextBlock_lbl" xml:lang="en-US">Inventories - Schedule of Inventory, Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl" xml:lang="en-US">Weighted-average Black-Scholes assumptions</link:label>
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock" xlink:label="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock" xlink:to="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_lbl" xlink:type="arc" />
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_lbl" xml:lang="en-US">Schedule of Defined Benefit Plans Disclosures [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="us-gaap_DefinedBenefitPlanDisclosureLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:to="us-gaap_DefinedBenefitPlanDisclosureLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanDisclosureLineItems_lbl" xml:lang="en-US">Defined Benefit Plan Disclosure [Line Items]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MarketableSecuritiesCurrent" xlink:to="us-gaap_MarketableSecuritiesCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_MarketableSecuritiesCurrent_2_lbl" xml:lang="en-US">Marketable Securities, Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_lbl" xml:lang="en-US">Property, Plant and Equipment [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xml:lang="en-US">Property, Plant and Equipment [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDepreciationMethods" xlink:label="us-gaap_PropertyPlantAndEquipmentDepreciationMethods" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentDepreciationMethods" xlink:to="us-gaap_PropertyPlantAndEquipmentDepreciationMethods_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentDepreciationMethods_lbl" xml:lang="en-US">Depreciation methods</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xlink:label="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xlink:to="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives_lbl" xml:lang="en-US">Estimated useful lives</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MarketableSecuritiesCurrent" xlink:to="us-gaap_MarketableSecuritiesCurrent_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MarketableSecuritiesCurrent_3_lbl" xml:lang="en-US">Marketable Securities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:to="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xml:lang="en-US">Useful life of intangible assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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 of patents</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xml:lang="en-US">Annual amortization expense this year</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xml:lang="en-US">Annual amortization expense year two</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xml:lang="en-US">Annual amortization expense year three</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xml:lang="en-US">Annual amortization expense year four</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_lbl" xml:lang="en-US">Annual amortization expense year five</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueTable" xlink:label="us-gaap_DisaggregationOfRevenueTable" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisaggregationOfRevenueLineItems_lbl" xml:lang="en-US">Disaggregation of Revenue [Line Items]</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_Revenues_2_lbl" xml:lang="en-US">Sales revenue</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_SalesRevenuePercent" xlink:to="sotk_SalesRevenuePercent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_SalesRevenuePercent_lbl" xml:lang="en-US">Sales revenue, percent</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CustomerAdvancesAndDeposits" xlink:label="us-gaap_CustomerAdvancesAndDeposits" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCredit_lbl" xml:lang="en-US">Letter of credit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityCollateral" xlink:label="us-gaap_LineOfCreditFacilityCollateral" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityCollateral_lbl" xml:lang="en-US">Letter of credit, collateral description</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized" />
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      <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>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryRawMaterials" xlink:to="us-gaap_InventoryRawMaterials_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InventoryRawMaterials_lbl" xml:lang="en-US">Raw materials and subassemblies</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryFinishedGoods" xlink:to="us-gaap_InventoryFinishedGoods_lbl" xlink:type="arc" />
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryWorkInProcess" xlink:to="us-gaap_InventoryWorkInProcess_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InventoryWorkInProcess_lbl" xml:lang="en-US">Work in process</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_InventoryValuationReserves_lbl" xml:lang="en-US">Less: Allowance</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_lbl" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_lbl" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl" xml:lang="en-US">Stock options shares available for grants</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_lbl" xml:lang="en-US">Options, expiration period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xml:lang="en-US">Stock options, outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_lbl" xml:lang="en-US">Stock options, vested</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_OptionsExercisedNetCashlessBasis" xlink:label="sotk_OptionsExercisedNetCashlessBasis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_OptionsExercisedNetCashlessBasis" xlink:to="sotk_OptionsExercisedNetCashlessBasis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_OptionsExercisedNetCashlessBasis_lbl" xml:lang="en-US">Options exercised, net cashless basis</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/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_2_lbl" xml:lang="en-US">Exercise of stock options</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xml:lang="en-US">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xml:lang="en-US">Expected life (in years)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_lbl" xml:lang="en-US">Risk free interest rate, minimum</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_lbl" xml:lang="en-US">Risk free interest rate, maximum</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_lbl" xml:lang="en-US">Expected volatility, minimum</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_lbl" xml:lang="en-US">Expected volatility, maximum</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xml:lang="en-US">Expected dividend yield</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">Options granted</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">Options, exercisable price</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_lbl" xml:lang="en-US">Options, vesting period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xml:lang="en-US">Weighted average grant date fair value, per share</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_lbl" xml:lang="en-US">Compensation expense yet to be recognized</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_lbl" xml:lang="en-US">Period for compensation expense to be recognized</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockOptionPlanExpense" xlink:to="us-gaap_StockOptionPlanExpense_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockOptionPlanExpense_2_lbl" xml:lang="en-US">Additional stock-based compensation expense as a result of applying ASC 718</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/label" xlink:label="us-gaap_ProfitLoss_lbl" xml:lang="en-US">Numerator for basic and diluted earnings per share</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">Denominator for basic earnings per share &#8211; weighted average</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DilutiveSecuritiesAbstract" xlink:label="us-gaap_DilutiveSecuritiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DilutiveSecuritiesAbstract" xlink:to="us-gaap_DilutiveSecuritiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DilutiveSecuritiesAbstract_lbl" xml:lang="en-US">Effects of dilutive securities</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">Stock options for employees, directors and outside consultants</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">Denominator for diluted earnings per share</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasic" xlink:to="us-gaap_EarningsPerShareBasic_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 Earnings Per Share</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareDiluted" xlink:to="us-gaap_EarningsPerShareDiluted_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_EarningsPerShareDiluted_2_lbl" xml:lang="en-US">Diluted Earnings Per Share</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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/2021/elts/us-gaap-2021-01-31.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">Monthly installments of principal and interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xml:lang="en-US">Interest rate</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentTerm" xlink:to="us-gaap_DebtInstrumentTerm_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentTerm_lbl" xml:lang="en-US">Maturity</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentDecreaseForgiveness" xlink:to="us-gaap_DebtInstrumentDecreaseForgiveness_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentDecreaseForgiveness_2_lbl" xml:lang="en-US">Gain on forgiveness of debt</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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 long-term debt</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="us-gaap_LineOfCreditFacilityTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityTable" xlink:to="us-gaap_LineOfCreditFacilityTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityTable_lbl" xml:lang="en-US">Line of Credit Facility [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="us-gaap_LineOfCreditFacilityLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityLineItems" xlink:to="us-gaap_LineOfCreditFacilityLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityLineItems_lbl" xml:lang="en-US">Line of Credit Facility [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">Revolving line of credit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" xlink:label="us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" xlink:to="us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_lbl" xml:lang="en-US">Interest rate</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityCollateral" xlink:to="us-gaap_LineOfCreditFacilityCollateral_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LineOfCreditFacilityCollateral_2_lbl" xml:lang="en-US">Revolving credit line collateral</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers" xlink:label="sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers" xlink:to="sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers_lbl" xml:lang="en-US">Credit line utilized to collateralize letter of credit issued to customers</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.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">Unused portion of credit line</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:to="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xml:lang="en-US">Total sales</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="us-gaap_ConcentrationRiskTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskTable" xlink:to="us-gaap_ConcentrationRiskTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskTable_lbl" xml:lang="en-US">Concentration Risk [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="us-gaap_ConcentrationRiskLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskLineItems" xlink:to="us-gaap_ConcentrationRiskLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskLineItems_lbl" xml:lang="en-US">Concentration Risk [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="us-gaap_ConcentrationRiskPercentage1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskPercentage1" xlink:to="us-gaap_ConcentrationRiskPercentage1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xml:lang="en-US">Outstanding accounts receivables, percent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock" xlink:to="sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock_doc" xml:lang="en-US">Disclosure of accounting policy for equipment, furnishings and leasehold improvements.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_ShippingAndHandlingPolicyTextBlock" xlink:to="sotk_ShippingAndHandlingPolicyTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_ShippingAndHandlingPolicyTextBlock_doc" xml:lang="en-US">Disclosure of accounting policy for the classification of shipping and handling costs, including whether the costs are included in cost of sales or included in other income statement accounts. If shipping and handling fees are significant and are not included in cost of sales, disclosure includes both the amounts of such costs and the line item on the income statement which includes such costs.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_UncertaintiesPolicyTextBlock" xlink:to="sotk_UncertaintiesPolicyTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_UncertaintiesPolicyTextBlock_doc" xml:lang="en-US">Disclosure of accounting policy for risk and uncertainties, for example, but not limited to, threat of global pandemics.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_EquipmentAndFurnishingsMember" xlink:to="sotk_EquipmentAndFurnishingsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_EquipmentAndFurnishingsMember_doc" xml:lang="en-US">Equipment and Furnishings</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_DomesticPatentsMember" xlink:to="sotk_DomesticPatentsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_DomesticPatentsMember_doc" xml:lang="en-US">Domestic Patents</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_ForeignPatentsMember" xlink:to="sotk_ForeignPatentsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_ForeignPatentsMember_doc" xml:lang="en-US">Foreign Patents</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_StockIncentivePlan2013Member" xlink:to="sotk_StockIncentivePlan2013Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_StockIncentivePlan2013Member_doc" xml:lang="en-US">2013 Stock Incentive Plan ("2013 Plan")</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_StockIncentivePlan2003Member" xlink:to="sotk_StockIncentivePlan2003Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_StockIncentivePlan2003Member_doc" xml:lang="en-US">2003 Stock Incentive Plan ("2003 Plan")</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_OptionsExercisedNetCashlessBasis" xlink:to="sotk_OptionsExercisedNetCashlessBasis_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_OptionsExercisedNetCashlessBasis_doc" xml:lang="en-US">Number of share options exercised on a net cashless basis during the current period.</link:label>
      <link:loc xlink:type="locator" xlink:href="sotk-20210831.xsd#sotk_NonEmployeeMemberOfBoardOfDirectorsMember" xlink:label="sotk_NonEmployeeMemberOfBoardOfDirectorsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_NonEmployeeMemberOfBoardOfDirectorsMember" xlink:to="sotk_NonEmployeeMemberOfBoardOfDirectorsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_NonEmployeeMemberOfBoardOfDirectorsMember_doc" xml:lang="en-US">Non-Empoyee Member of Board of Directors</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers" xlink:to="sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers_doc" xml:lang="en-US">Amount borrowed under the credit facility being utilized to collateralize letters of credit issued to customers for cash deposits on existing orders during the period.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_ForeignCustomersMember" xlink:to="sotk_ForeignCustomersMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_ForeignCustomersMember_doc" xml:lang="en-US">Foreign Customers</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_SalesRevenuePercent" xlink:to="sotk_SalesRevenuePercent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_SalesRevenuePercent_doc" xml:lang="en-US">Percent of Sales Revenue</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_FluxingSystemsMember" xlink:to="sotk_FluxingSystemsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_FluxingSystemsMember_doc" xml:lang="en-US">Fluxing Systems</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_IntegratedCoatingSystemsMember" xlink:to="sotk_IntegratedCoatingSystemsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_IntegratedCoatingSystemsMember_doc" xml:lang="en-US">Integrated Coating Systems</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_MultiAxisCoatingSystemsMember" xlink:to="sotk_MultiAxisCoatingSystemsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_MultiAxisCoatingSystemsMember_doc" xml:lang="en-US">Multi-Axis Coating Systems</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_OemSystemsMember" xlink:to="sotk_OemSystemsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_OemSystemsMember_doc" xml:lang="en-US">OEM Systems</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_OtherProductLineMember" xlink:to="sotk_OtherProductLineMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_OtherProductLineMember_doc" xml:lang="en-US">Other Product Line</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sotk_ProductLineMember" xlink:to="sotk_ProductLineMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sotk_ProductLineMember_doc" xml:lang="en-US">Total Product Line</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_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_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_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>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquity_4_lbl" xml:lang="en-US">Stockholders' Equity Attributable to Parent</link:label>
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    </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>11
<FILENAME>sotk-20210831_pre.xml
<DESCRIPTION>XBRL PRESENTATION FILE
<TEXT>
<XBRL>
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    <us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_80D_eus-gaap--BusinessDescriptionAndBasisOfPresentationTextBlock_zqzvYDLKHhLi" style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.5in"&gt;&lt;b&gt;NOTE 1: BUSINESS DESCRIPTION&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;Sono-Tek Corporation (the &#x201c;Company&#x201d;, &#x201c;Sono-Tek&#x201d;, &#x201c;We&#x201d;
or &#x201c;Our&#x201d;) was incorporated in New York on March 21, 1975. We are the world leader in the design and manufacture of ultrasonic
coating systems for applying precise, thin film coatings to add functional properties, protect or strengthen surfaces on parts and components
for the microelectronics/electronics, alternative energy, medical, industrial and emerging research &amp;amp; development/other markets. We
design and manufacture custom-engineered ultrasonic coating systems incorporating our patented technology, in combination with strong
applications engineering knowledge, to assist our customers in achieving their desired coating solutions.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;The accompanying unaudited condensed consolidated financial statements have been prepared
in accordance with accounting principles generally accepted in the United States (&#x201c;GAAP&#x201d;) for interim financial information
with the instructions for Form 10-Q and Article 8 of Regulation S-X. Accordingly, the unaudited condensed consolidated financial statements
do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of the Company&#x2019;s
management, all adjustments considered necessary for a fair presentation (consisting of normal recurring adjustments) have been included.
The results for the interim periods are not necessarily indicative of what the results will be for the fiscal year. The accompanying unaudited
condensed consolidated financial statements should be read in conjunction with the audited Consolidated Financial Statements as of and
for the fiscal year ended February 28, 2021 (&#x201c;fiscal year 2021&#x201d;) contained in the Company&#x2019;s 2021 Annual Report on Form
10-K filed with the SEC on May 28, 2021. The Company&#x2019;s current fiscal year ends on February 28, 2022 (&#x201c;fiscal 2022&#x201d;).&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock>
    <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_80F_eus-gaap--SignificantAccountingPoliciesTextBlock_zuGuIUxB95kh" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;NOTE 2: SIGNIFICANT ACCOUNTING POLICIES&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_849_eus-gaap--ReceivablesPolicyTextBlock_zo2TpfuLlq9k" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86E_zUUitfUKvdD9"&gt;Accounts Receivable, net&lt;/span&gt; - &lt;/i&gt;&lt;/b&gt;In the normal course of business, the Company
extends credit to customers. Accounts receivable, less the allowance for doubtful accounts, reflect the net realizable value of receivables
and approximate fair value. The Company records a bad debt expense/allowance based on management&#x2019;s estimate of uncollectible accounts.
All outstanding accounts receivable accounts are reviewed for collectability on an individual basis.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_84F_eus-gaap--CashAndCashEquivalentsPolicyTextBlock_zEer2syZlCb7" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86F_z5aNWy93qxd4"&gt;Cash and Cash Equivalents&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Cash and cash equivalents consist of money
market mutual funds, short term commercial paper and short-term certificates of deposit with original maturities of 90 days or less.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_84A_eus-gaap--ConsolidationPolicyTextBlock_zX18u4il7nbi" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86C_z5wdjHOB7VG8"&gt;Consolidation&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - The accompanying unaudited condensed consolidated financial
statements of the Company include the accounts of the Company and its wholly owned subsidiary, Sono-Tek Industrial Park, LLC (&#x201c;SIP&#x201d;)
in conformity with generally accepted accounting principles in the United States (&#x201c;GAAP&#x201d;). SIP operates as a real estate holding
company for the Company&#x2019;s real estate operations. All intercompany accounts and transactions have been eliminated in consolidation.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_84E_eus-gaap--EarningsPerSharePolicyTextBlock_ziXywvQWCLhd" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_860_zwzhOFxb7lJb"&gt;Earnings Per Share&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Basic earnings per share (&#x201c;EPS&#x201d;)
is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the
potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock
under the treasury stock method.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_84D_ecustom--EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock_z3uNY7IUUYHa" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_866_zONtU2faefsa"&gt;Equipment, Furnishings and Leasehold Improvements&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - Equipment, furnishings
and leasehold improvements are stated at cost. Depreciation of equipment and furnishings is computed by use of the &lt;span id="xdx_90E_eus-gaap--PropertyPlantAndEquipmentDepreciationMethods_c20210301__20210831__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--EquipmentAndFurnishingsMember_z1pCcsmhNDo4" title="Depreciation methods"&gt;straight-line method&lt;/span&gt;
based on the estimated useful lives of the assets, which range from &lt;span id="xdx_90E_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_c20210301__20210831__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--EquipmentAndFurnishingsMember_zZ2d7hzJwZt6" title="Estimated useful lives"&gt;three to five years&lt;/span&gt;.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_844_eus-gaap--FairValueOfFinancialInstrumentsPolicy_zHcq1KbfPav5" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86A_zV25tNumWtV5"&gt;Fair Value of Financial Instruments&lt;/span&gt; -&lt;/i&gt;&lt;/b&gt; The Company applies Accounting Standards
Codification (&#x201c;ASC&#x201d;) 820,&#160;&lt;i&gt;Fair Value Measurement&#160;&lt;/i&gt;(&#x201c;ASC 820&#x201d;), which establishes a framework for
measuring fair value and clarifies the definition of fair value within that framework. ASC 820 defines fair value as an exit price, which
is the price that would be received for an asset or paid to transfer a liability in the Company&#x2019;s principal or most advantageous
market in an orderly transaction between market participants on the measurement date. The fair value hierarchy established in ASC 820
generally requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair
value. Observable inputs reflect the assumptions that market participants would use in pricing the asset or liability and are developed
based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the entity&#x2019;s own assumptions
based on market data and the entity&#x2019;s judgments about the assumptions that market participants would use in pricing the asset or
liability and are to be developed based on the best information available in the circumstances.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;The carrying amounts of financial instruments reported in the accompanying unaudited condensed
consolidated financial statements for current assets and current liabilities approximate the fair value because of the immediate or short-term
maturities of the financial instruments.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;The valuation hierarchy is composed of three levels. The classification within the valuation
hierarchy is based on the lowest level of input that is significant to the fair value measurement. The levels within the valuation hierarchy
are described below:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;Level 1 &#x2014; Assets and liabilities with unadjusted, quoted prices listed on active
market exchanges. Inputs to the fair value measurement are observable inputs, such as quoted prices in active markets for identical assets
or liabilities.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;Level 2 &#x2014; Inputs to the fair value measurement are determined using prices for recently
traded assets and liabilities with similar underlying terms, as well as direct or indirect observable inputs, such as interest rates and
yield curves that are observable at commonly quoted intervals.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;Level 3 &#x2014; Inputs to the fair value measurement are unobservable inputs, such as estimates,
assumptions, and valuation techniques when little or no market data exists for the assets or liabilities.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_893_eus-gaap--FairValueAssetsMeasuredOnRecurringBasisTextBlock_zXoeqDjqdJka" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white"&gt;The fair values of financial assets of the
Company were determined using the following categories at August 31, 2021 and February 28, 2021, respectively:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; background-color: white"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 11pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_8BB_z8hw9JjeSePd" style="display: none"&gt;Significant Accounting Policies - Fair values of financial assets of the Company&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, 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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Level 1&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Level 2&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;&lt;span id="xdx_91C_eus-gaap--FairValueInputsLevel3Member_zavKn1okFuT5"&gt;Level 3&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&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="2" style="text-align: center"&gt;&lt;span id="xdx_913_eus-gaap--FairValueInputsLevel1Member_zZVXEl6TV1af" style="display: none"&gt;Level 1&lt;/span&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;&lt;span id="xdx_91D_eus-gaap--FairValueInputsLevel2Member_zIlB50eTGs2h" style="display: none"&gt;Level 2&lt;/span&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;&#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;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="width: 44%; padding-bottom: 2.5pt"&gt;Marketable Securities &#x2013; August 31, 2021&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zdwpOiIMkWK8"&gt;3,554,124&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zSuRGpMCAjH4"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0473"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zsvSvBEvzUMd"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0474"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831_zc7JncnTeht3"&gt;3,554,124&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; 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&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;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(230,239,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Marketable Securities &#x2013; February 28, 2021&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_z9tVB9bIV6I"&gt;4,261,927&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zJ6M7MsvoZra"&gt;301,543&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zSAUbPCJ9awf"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0478"&gt;&#x2014;&lt;/span&gt;&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="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;&lt;span id="xdx_90A_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228_zsfSuTSFeNK6"&gt;4,563,470&lt;/span&gt;&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_8AA_zBvlSBQaWOv4" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; background-color: white"&gt;Marketable Securities include mutual funds, certificates of deposit
and US Treasury securities, totaling $&lt;span id="xdx_907_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831_zNo5sOaH7A4h" title="Marketable Securities"&gt;3,554,124&lt;/span&gt; and $&lt;span id="xdx_90F_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228_zlWig31DL1hg" title="Marketable Securities"&gt;4,563,470&lt;/span&gt; that are considered to be highly liquid and easily tradeable as of August
31, 2021 and February 28, 2021, respectively. Mutual funds and US Treasury securities are valued using inputs observable in active markets
for identical securities and are therefore classified as Level&#160;1 and certificates of deposit are classified as Level 2 within the
Company&#x2019;s fair value hierarchy.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; background-color: white"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_847_eus-gaap--IncomeTaxPolicyTextBlock_zjnZdgYiUk49" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_865_zVEIXypbb3Z2"&gt;Income Taxes&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - The Company accounts for income taxes under the asset and
liability method. Under this method, deferred income taxes are recognized for the tax consequences of "temporary differences"
by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts and
the tax basis of existing assets and liabilities. If it is more likely than not that some portion or all of a deferred tax asset will
not be realized, a valuation allowance is recognized. The Company uses a recognition threshold and a measurement attribute for financial
statement recognition and measurement of tax positions taken or expected to be taken in a return. For those benefits to be recognized,
a tax position must be more likely than not to be sustained upon examination by taxing authorities. As of August 31, 2021 and February
28, 2021, there were no uncertain tax positions.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_84E_eus-gaap--GoodwillAndIntangibleAssetsPolicyTextBlock_zeU8zamYRonk" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86F_zRH5b0UrQT6l"&gt;Intangible Assets&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Include costs of patent applications which are
deferred and charged to operations over &lt;span id="xdx_900_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_pid_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--DomesticPatentsMember_zdW7yeL3dTPk" title="Useful life of intangible assets::XDX::P17Y"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0489"&gt;seventeen&lt;/span&gt;&lt;/span&gt; years for domestic patents and &lt;span id="xdx_90C_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--ForeignPatentsMember_z0cbok1hctt9" title="Useful life of intangible assets::XDX::P12Y"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0491"&gt;twelve&lt;/span&gt;&lt;/span&gt; years for foreign patents. The accumulated amortization
of patents is $&lt;span id="xdx_909_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210831_zUz2H3D5C0H2" title="Accumulated amortization of patents"&gt;187,206&lt;/span&gt; and $&lt;span id="xdx_908_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210228_zcX4c3JSJVt"&gt;181,922&lt;/span&gt; at August 31, 2021 and February 28, 2021, respectively. Annual amortization expense of such intangible
assets is expected to be approximately $&lt;span id="xdx_909_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_iI_c20210831_z2IBQzalIyme" title="Annual amortization expense this year"&gt;&lt;span id="xdx_901_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_iI_c20210831_z9lG7mLUIgz4" title="Annual amortization expense year two"&gt;&lt;span id="xdx_90B_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_iI_c20210831_z7GwUQOmI2vj" title="Annual amortization expense year three"&gt;&lt;span id="xdx_907_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_iI_c20210831_zXtGVlN3PvO9" title="Annual amortization expense year four"&gt;&lt;span id="xdx_907_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_iI_c20210831_zUVU3es1QZs4" title="Annual amortization expense year five"&gt;11,000&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt; per year for the next five years.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_84D_eus-gaap--InventoryPolicyTextBlock_zHqkw7FzF5b4" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86C_zMvOvDYmvQc9"&gt;Inventories&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Inventories are stated at the lower of cost or net realizable
value. Cost is determined using the first-in, first-out (FIFO) method for raw materials, subassemblies and work-in-progress and the specific
identification method for finished goods. Management compares the cost of inventory with the net realizable value and, if applicable,
an allowance is made for writing down the inventory to its net realizable value, if lower than cost. On an ongoing basis, inventory is
reviewed for potential write-down for estimated obsolescence or unmarketable inventory based upon forecasts for future demand and market
conditions.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_84B_eus-gaap--PropertyPlantAndEquipmentPolicyTextBlock_zgaaK8SDPBF3" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_868_zCWEXkxCJEH4"&gt;Land and Buildings&lt;/span&gt; - &lt;/i&gt;&lt;/b&gt;Land and buildings are stated at cost. Buildings are
being depreciated by use of the straight-line method based on an estimated useful life of forty years.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;

&lt;p id="xdx_84E_eus-gaap--ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_zwqgAzSH4D76" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86E_zkBLSyW2psr2"&gt;Long-Lived Assets&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;The Company periodically evaluates the carrying
value of long-lived assets, including intangible assets, when events and circumstances warrant such a review. The carrying value of a
long-lived asset is considered impaired when the anticipated undiscounted cash flow from such asset is separately identifiable and is
less than its carrying value. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair market
value of the long-lived asset. Fair market value is determined primarily using the anticipated cash flows discounted at a rate commensurate
with the risk involved. No impairment losses were identified or recorded in the six months ended August 31, 2021 and August 31, 2020 on
the Company&#x2019;s long-lived assets.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_843_eus-gaap--UseOfEstimates_zZy02yAanDT6" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_864_zh126OGe2id5"&gt;Management Estimates&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;The preparation of the unaudited condensed
consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported
amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated
financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those
estimates.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;

&lt;p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zgLrZ9cCvKT5" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_863_z2JgNGcBSpwh"&gt;New Accounting Pronouncements&lt;/span&gt; &lt;/i&gt;&lt;/b&gt;- In December 2019, the FASB issued ASU 2019-12,
&#x201c;&lt;i&gt;Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes&lt;/i&gt;.&#x201d; The guidance issued in this update simplifies
the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intra-period
tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for
outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or
rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The ASU became effective for
the Company on March 1, 2021 and is not expected to have a significant impact on the Company&#x2019;s consolidated financial statements.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;In June 2016, the FASB issued ASU 2016-13 - Financial Instruments-Credit Losses-Measurement
of Credit Losses on Financial Instruments. Codification Improvements to Topic 326, Financial Instruments &#x2013; Credit Losses, have been
released in November 2018 (2018-19), November 2019 (2019-10 and 2019-11) and a January 2020 Update (2020-02) that provided additional
guidance on this Topic. This guidance replaces the current incurred loss impairment methodology with a methodology that reflects expected
credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.
For SEC filers meeting certain criteria, the amendments in this ASU are effective for fiscal years, and interim periods within those fiscal
years, beginning after December 15, 2019. For SEC filers that meet the criteria of a smaller reporting company (including this Company)
and for non-SEC registrant public companies and other organizations, the amendments in this ASU are effective for fiscal years, and interim
periods within those fiscal years, beginning after December 15, 2022. Early adoption will be permitted for all organizations for fiscal
years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company is currently in the process of its
analysis of the impact of this guidance on its consolidated financial statements and does not expect the adoption of this guidance to
have a material impact on the Company&#x2019;s consolidated financial statements.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;Other than Accounting Standards Update (&#x201c;ASU&#x201d;) 2019-12 and ASU 2016-13 discussed
above, all new accounting pronouncements issued but not yet effective have been deemed to be not applicable to the Company. Hence, the
adoption of these new accounting pronouncements, once effective, is not expected to have an impact on the Company.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_84A_eus-gaap--StandardProductWarrantyPolicy_zASScQoaHZwk" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86A_zGh1V5x70l1a"&gt;Product Warranty&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - Expected future product warranty expense is recorded when
the product is sold.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_84C_eus-gaap--PriorPeriodReclassificationAdjustmentDescription_zguYGSpU7aVh" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86D_za1EjU5Sv9v9"&gt;Reclassifications&lt;/span&gt; &lt;/i&gt;&lt;/b&gt;&lt;i&gt;&#x2013;&lt;/i&gt; &lt;span style="font-family: TimesNewRomanPSMT"&gt;Where
appropriate, certain reclassifications have been made to the prior period to conform to the presentations of the current period.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Calibri,sans-serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_848_eus-gaap--ResearchAndDevelopmentExpensePolicy_zYo1Q0m99Eac" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_860_zTWRcZZnGjRd"&gt;Research and Product Development Expenses&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Research and product development
expenses represent engineering and other expenditures incurred for developing new products, for refining the Company's existing products
and for developing systems to meet unique customer specifications for potential orders or for new industry applications and are expensed
as incurred.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_845_eus-gaap--RevenueRecognitionPolicyTextBlock_z6ijbqEX8Khh" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_863_z3ZWkmKbkCLe"&gt;Revenue Recognition&lt;/span&gt; -&lt;/i&gt;&lt;/b&gt;&#160;The Company recognizes revenue in accordance with
ASC 606, Revenue from Contracts with Customers, the core principle of which is that an entity should recognize revenue to depict the transfer
of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to
receive in exchange for those goods or services.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_846_ecustom--ShippingAndHandlingPolicyTextBlock_z7RHaXujvYu" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_869_zTlsDjxx5Vv"&gt;Shipping and Handling Costs&lt;/span&gt; - &lt;/i&gt;&lt;/b&gt;Shipping and handling costs are included in
cost of sales in the accompanying unaudited consolidated statements of income.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;

&lt;p id="xdx_845_eus-gaap--ShareBasedCompensationOptionAndIncentivePlansPolicy_ziQEmvcL9w7g" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_866_zlVA6xexNxH1"&gt;Stock-Based Compensation&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - The Company currently uses a Black-Scholes option
pricing model to calculate the fair value of its stock options. The fair value of each option is estimated on the date of grant based
on the Black-Scholes options-pricing model utilizing certain assumptions for a risk free interest rate; volatility; and expected remaining
lives of the awards. The Company primarily uses historical data to determine the assumptions to be used in the Black-Scholes model. The
assumptions used in calculating the fair value of share-based payment awards represent management&#x2019;s best estimates, but these estimates
involve inherent uncertainties and the application of management judgment.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;ASC 718 requires the recognition of the fair value of stock compensation expense on a straight
line basis over the requite service period, based on the terms of the award in net income. The Company accounts for forfeitures as they
occur. Although every effort is made to ensure the accuracy of the Company&#x2019;s estimates and assumptions, significant unanticipated
changes in those estimates, interpretations and assumptions may result in recording stock option expense that may materially impact the
Company&#x2019;s financial statements for each respective reporting period.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_842_ecustom--UncertaintiesPolicyTextBlock_z8Zu9T7kwWEk" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_866_z8v0hsVigF11"&gt;Uncertainties&lt;/span&gt; - &lt;/i&gt;&lt;/b&gt;Since early 2020, when the World Health Organization established
the transmissible and pathogenic coronavirus a global pandemic, there have been business slowdowns. The outbreak of such a communicable
disease has resulted in a widespread health crisis which has adversely affected general commercial activity and the economies and financial
markets of many countries, including the United States. As the outbreak of the disease has continued through fiscal 2022, the measures
taken by the governments of countries affected have adversely affected the Company&#x2019;s business, financial condition, and results
of operations. The pandemic had a slight adverse impact on sales and the demand for products in fiscal 2021, resulting in sales that were
less than expected at the beginning of fiscal 2021. &lt;span style="font-size: 8pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

</us-gaap:SignificantAccountingPoliciesTextBlock>
    <us-gaap:ReceivablesPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_849_eus-gaap--ReceivablesPolicyTextBlock_zo2TpfuLlq9k" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86E_zUUitfUKvdD9"&gt;Accounts Receivable, net&lt;/span&gt; - &lt;/i&gt;&lt;/b&gt;In the normal course of business, the Company
extends credit to customers. Accounts receivable, less the allowance for doubtful accounts, reflect the net realizable value of receivables
and approximate fair value. The Company records a bad debt expense/allowance based on management&#x2019;s estimate of uncollectible accounts.
All outstanding accounts receivable accounts are reviewed for collectability on an individual basis.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:ReceivablesPolicyTextBlock>
    <us-gaap:CashAndCashEquivalentsPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84F_eus-gaap--CashAndCashEquivalentsPolicyTextBlock_zEer2syZlCb7" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86F_z5aNWy93qxd4"&gt;Cash and Cash Equivalents&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Cash and cash equivalents consist of money
market mutual funds, short term commercial paper and short-term certificates of deposit with original maturities of 90 days or less.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:CashAndCashEquivalentsPolicyTextBlock>
    <us-gaap:ConsolidationPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84A_eus-gaap--ConsolidationPolicyTextBlock_zX18u4il7nbi" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86C_z5wdjHOB7VG8"&gt;Consolidation&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - The accompanying unaudited condensed consolidated financial
statements of the Company include the accounts of the Company and its wholly owned subsidiary, Sono-Tek Industrial Park, LLC (&#x201c;SIP&#x201d;)
in conformity with generally accepted accounting principles in the United States (&#x201c;GAAP&#x201d;). SIP operates as a real estate holding
company for the Company&#x2019;s real estate operations. All intercompany accounts and transactions have been eliminated in consolidation.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:ConsolidationPolicyTextBlock>
    <us-gaap:EarningsPerSharePolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84E_eus-gaap--EarningsPerSharePolicyTextBlock_ziXywvQWCLhd" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_860_zwzhOFxb7lJb"&gt;Earnings Per Share&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Basic earnings per share (&#x201c;EPS&#x201d;)
is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the
potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock
under the treasury stock method.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:EarningsPerSharePolicyTextBlock>
    <sotk:EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84D_ecustom--EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock_z3uNY7IUUYHa" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_866_zONtU2faefsa"&gt;Equipment, Furnishings and Leasehold Improvements&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - Equipment, furnishings
and leasehold improvements are stated at cost. Depreciation of equipment and furnishings is computed by use of the &lt;span id="xdx_90E_eus-gaap--PropertyPlantAndEquipmentDepreciationMethods_c20210301__20210831__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--EquipmentAndFurnishingsMember_z1pCcsmhNDo4" title="Depreciation methods"&gt;straight-line method&lt;/span&gt;
based on the estimated useful lives of the assets, which range from &lt;span id="xdx_90E_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_c20210301__20210831__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--EquipmentAndFurnishingsMember_zZ2d7hzJwZt6" title="Estimated useful lives"&gt;three to five years&lt;/span&gt;.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</sotk:EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock>
    <us-gaap:PropertyPlantAndEquipmentDepreciationMethods contextRef="From2021-03-012021-08-31_custom_EquipmentAndFurnishingsMember">straight-line method</us-gaap:PropertyPlantAndEquipmentDepreciationMethods>
    <us-gaap:PropertyPlantAndEquipmentEstimatedUsefulLives contextRef="From2021-03-012021-08-31_custom_EquipmentAndFurnishingsMember">three to five years</us-gaap:PropertyPlantAndEquipmentEstimatedUsefulLives>
    <us-gaap:FairValueOfFinancialInstrumentsPolicy contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_844_eus-gaap--FairValueOfFinancialInstrumentsPolicy_zHcq1KbfPav5" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86A_zV25tNumWtV5"&gt;Fair Value of Financial Instruments&lt;/span&gt; -&lt;/i&gt;&lt;/b&gt; The Company applies Accounting Standards
Codification (&#x201c;ASC&#x201d;) 820,&#160;&lt;i&gt;Fair Value Measurement&#160;&lt;/i&gt;(&#x201c;ASC 820&#x201d;), which establishes a framework for
measuring fair value and clarifies the definition of fair value within that framework. ASC 820 defines fair value as an exit price, which
is the price that would be received for an asset or paid to transfer a liability in the Company&#x2019;s principal or most advantageous
market in an orderly transaction between market participants on the measurement date. The fair value hierarchy established in ASC 820
generally requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair
value. Observable inputs reflect the assumptions that market participants would use in pricing the asset or liability and are developed
based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the entity&#x2019;s own assumptions
based on market data and the entity&#x2019;s judgments about the assumptions that market participants would use in pricing the asset or
liability and are to be developed based on the best information available in the circumstances.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;The carrying amounts of financial instruments reported in the accompanying unaudited condensed
consolidated financial statements for current assets and current liabilities approximate the fair value because of the immediate or short-term
maturities of the financial instruments.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;The valuation hierarchy is composed of three levels. The classification within the valuation
hierarchy is based on the lowest level of input that is significant to the fair value measurement. The levels within the valuation hierarchy
are described below:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;Level 1 &#x2014; Assets and liabilities with unadjusted, quoted prices listed on active
market exchanges. Inputs to the fair value measurement are observable inputs, such as quoted prices in active markets for identical assets
or liabilities.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;Level 2 &#x2014; Inputs to the fair value measurement are determined using prices for recently
traded assets and liabilities with similar underlying terms, as well as direct or indirect observable inputs, such as interest rates and
yield curves that are observable at commonly quoted intervals.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;Level 3 &#x2014; Inputs to the fair value measurement are unobservable inputs, such as estimates,
assumptions, and valuation techniques when little or no market data exists for the assets or liabilities.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_893_eus-gaap--FairValueAssetsMeasuredOnRecurringBasisTextBlock_zXoeqDjqdJka" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white"&gt;The fair values of financial assets of the
Company were determined using the following categories at August 31, 2021 and February 28, 2021, respectively:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; background-color: white"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 11pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_8BB_z8hw9JjeSePd" style="display: none"&gt;Significant Accounting Policies - Fair values of financial assets of the Company&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, 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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Level 1&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Level 2&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;&lt;span id="xdx_91C_eus-gaap--FairValueInputsLevel3Member_zavKn1okFuT5"&gt;Level 3&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&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="2" style="text-align: center"&gt;&lt;span id="xdx_913_eus-gaap--FairValueInputsLevel1Member_zZVXEl6TV1af" style="display: none"&gt;Level 1&lt;/span&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;&lt;span id="xdx_91D_eus-gaap--FairValueInputsLevel2Member_zIlB50eTGs2h" style="display: none"&gt;Level 2&lt;/span&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;&#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;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="width: 44%; padding-bottom: 2.5pt"&gt;Marketable Securities &#x2013; August 31, 2021&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zdwpOiIMkWK8"&gt;3,554,124&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zSuRGpMCAjH4"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0473"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zsvSvBEvzUMd"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0474"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831_zc7JncnTeht3"&gt;3,554,124&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; 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&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;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(230,239,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Marketable Securities &#x2013; February 28, 2021&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_z9tVB9bIV6I"&gt;4,261,927&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zJ6M7MsvoZra"&gt;301,543&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zSAUbPCJ9awf"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0478"&gt;&#x2014;&lt;/span&gt;&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="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;&lt;span id="xdx_90A_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228_zsfSuTSFeNK6"&gt;4,563,470&lt;/span&gt;&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_8AA_zBvlSBQaWOv4" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; background-color: white"&gt;Marketable Securities include mutual funds, certificates of deposit
and US Treasury securities, totaling $&lt;span id="xdx_907_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831_zNo5sOaH7A4h" title="Marketable Securities"&gt;3,554,124&lt;/span&gt; and $&lt;span id="xdx_90F_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228_zlWig31DL1hg" title="Marketable Securities"&gt;4,563,470&lt;/span&gt; that are considered to be highly liquid and easily tradeable as of August
31, 2021 and February 28, 2021, respectively. Mutual funds and US Treasury securities are valued using inputs observable in active markets
for identical securities and are therefore classified as Level&#160;1 and certificates of deposit are classified as Level 2 within the
Company&#x2019;s fair value hierarchy.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; background-color: white"&gt;&#160;&lt;/p&gt;

</us-gaap:FairValueOfFinancialInstrumentsPolicy>
    <us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_893_eus-gaap--FairValueAssetsMeasuredOnRecurringBasisTextBlock_zXoeqDjqdJka" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white"&gt;The fair values of financial assets of the
Company were determined using the following categories at August 31, 2021 and February 28, 2021, respectively:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; background-color: white"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 11pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_8BB_z8hw9JjeSePd" style="display: none"&gt;Significant Accounting Policies - Fair values of financial assets of the Company&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, 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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Level 1&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Level 2&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;&lt;span id="xdx_91C_eus-gaap--FairValueInputsLevel3Member_zavKn1okFuT5"&gt;Level 3&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&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="2" style="text-align: center"&gt;&lt;span id="xdx_913_eus-gaap--FairValueInputsLevel1Member_zZVXEl6TV1af" style="display: none"&gt;Level 1&lt;/span&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;&lt;span id="xdx_91D_eus-gaap--FairValueInputsLevel2Member_zIlB50eTGs2h" style="display: none"&gt;Level 2&lt;/span&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;&#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;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="width: 44%; padding-bottom: 2.5pt"&gt;Marketable Securities &#x2013; August 31, 2021&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zdwpOiIMkWK8"&gt;3,554,124&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zSuRGpMCAjH4"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0473"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zsvSvBEvzUMd"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0474"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831_zc7JncnTeht3"&gt;3,554,124&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; 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&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;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(230,239,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Marketable Securities &#x2013; February 28, 2021&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_z9tVB9bIV6I"&gt;4,261,927&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zJ6M7MsvoZra"&gt;301,543&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zSAUbPCJ9awf"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0478"&gt;&#x2014;&lt;/span&gt;&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="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;&lt;span id="xdx_90A_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228_zsfSuTSFeNK6"&gt;4,563,470&lt;/span&gt;&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:FairValueAssetsMeasuredOnRecurringBasisTextBlock>
    <us-gaap:MarketableSecuritiesCurrent
      contextRef="AsOf2021-08-31_us-gaap_FairValueInputsLevel1Member"
      decimals="0"
      unitRef="USD">3554124</us-gaap:MarketableSecuritiesCurrent>
    <us-gaap:MarketableSecuritiesCurrent contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">3554124</us-gaap:MarketableSecuritiesCurrent>
    <us-gaap:MarketableSecuritiesCurrent
      contextRef="AsOf2021-02-28_us-gaap_FairValueInputsLevel1Member"
      decimals="0"
      unitRef="USD">4261927</us-gaap:MarketableSecuritiesCurrent>
    <us-gaap:MarketableSecuritiesCurrent
      contextRef="AsOf2021-02-28_us-gaap_FairValueInputsLevel2Member"
      decimals="0"
      unitRef="USD">301543</us-gaap:MarketableSecuritiesCurrent>
    <us-gaap:MarketableSecuritiesCurrent contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">4563470</us-gaap:MarketableSecuritiesCurrent>
    <us-gaap:MarketableSecuritiesCurrent contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">3554124</us-gaap:MarketableSecuritiesCurrent>
    <us-gaap:MarketableSecuritiesCurrent contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">4563470</us-gaap:MarketableSecuritiesCurrent>
    <us-gaap:IncomeTaxPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_847_eus-gaap--IncomeTaxPolicyTextBlock_zjnZdgYiUk49" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_865_zVEIXypbb3Z2"&gt;Income Taxes&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - The Company accounts for income taxes under the asset and
liability method. Under this method, deferred income taxes are recognized for the tax consequences of "temporary differences"
by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts and
the tax basis of existing assets and liabilities. If it is more likely than not that some portion or all of a deferred tax asset will
not be realized, a valuation allowance is recognized. The Company uses a recognition threshold and a measurement attribute for financial
statement recognition and measurement of tax positions taken or expected to be taken in a return. For those benefits to be recognized,
a tax position must be more likely than not to be sustained upon examination by taxing authorities. As of August 31, 2021 and February
28, 2021, there were no uncertain tax positions.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:IncomeTaxPolicyTextBlock>
    <us-gaap:GoodwillAndIntangibleAssetsPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84E_eus-gaap--GoodwillAndIntangibleAssetsPolicyTextBlock_zeU8zamYRonk" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86F_zRH5b0UrQT6l"&gt;Intangible Assets&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Include costs of patent applications which are
deferred and charged to operations over &lt;span id="xdx_900_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_pid_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--DomesticPatentsMember_zdW7yeL3dTPk" title="Useful life of intangible assets::XDX::P17Y"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0489"&gt;seventeen&lt;/span&gt;&lt;/span&gt; years for domestic patents and &lt;span id="xdx_90C_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--ForeignPatentsMember_z0cbok1hctt9" title="Useful life of intangible assets::XDX::P12Y"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0491"&gt;twelve&lt;/span&gt;&lt;/span&gt; years for foreign patents. The accumulated amortization
of patents is $&lt;span id="xdx_909_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210831_zUz2H3D5C0H2" title="Accumulated amortization of patents"&gt;187,206&lt;/span&gt; and $&lt;span id="xdx_908_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210228_zcX4c3JSJVt"&gt;181,922&lt;/span&gt; at August 31, 2021 and February 28, 2021, respectively. Annual amortization expense of such intangible
assets is expected to be approximately $&lt;span id="xdx_909_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_iI_c20210831_z2IBQzalIyme" title="Annual amortization expense this year"&gt;&lt;span id="xdx_901_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_iI_c20210831_z9lG7mLUIgz4" title="Annual amortization expense year two"&gt;&lt;span id="xdx_90B_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_iI_c20210831_z7GwUQOmI2vj" title="Annual amortization expense year three"&gt;&lt;span id="xdx_907_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_iI_c20210831_zXtGVlN3PvO9" title="Annual amortization expense year four"&gt;&lt;span id="xdx_907_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_iI_c20210831_zUVU3es1QZs4" title="Annual amortization expense year five"&gt;11,000&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt; per year for the next five years.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:GoodwillAndIntangibleAssetsPolicyTextBlock>
    <us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">187206</us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>
    <us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">181922</us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>
    <us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">11000</us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths>
    <us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">11000</us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo>
    <us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">11000</us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree>
    <us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">11000</us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour>
    <us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">11000</us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive>
    <us-gaap:InventoryPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84D_eus-gaap--InventoryPolicyTextBlock_zHqkw7FzF5b4" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86C_zMvOvDYmvQc9"&gt;Inventories&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Inventories are stated at the lower of cost or net realizable
value. Cost is determined using the first-in, first-out (FIFO) method for raw materials, subassemblies and work-in-progress and the specific
identification method for finished goods. Management compares the cost of inventory with the net realizable value and, if applicable,
an allowance is made for writing down the inventory to its net realizable value, if lower than cost. On an ongoing basis, inventory is
reviewed for potential write-down for estimated obsolescence or unmarketable inventory based upon forecasts for future demand and market
conditions.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:InventoryPolicyTextBlock>
    <us-gaap:PropertyPlantAndEquipmentPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84B_eus-gaap--PropertyPlantAndEquipmentPolicyTextBlock_zgaaK8SDPBF3" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_868_zCWEXkxCJEH4"&gt;Land and Buildings&lt;/span&gt; - &lt;/i&gt;&lt;/b&gt;Land and buildings are stated at cost. Buildings are
being depreciated by use of the straight-line method based on an estimated useful life of forty years.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;

</us-gaap:PropertyPlantAndEquipmentPolicyTextBlock>
    <us-gaap:ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84E_eus-gaap--ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_zwqgAzSH4D76" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86E_zkBLSyW2psr2"&gt;Long-Lived Assets&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;The Company periodically evaluates the carrying
value of long-lived assets, including intangible assets, when events and circumstances warrant such a review. The carrying value of a
long-lived asset is considered impaired when the anticipated undiscounted cash flow from such asset is separately identifiable and is
less than its carrying value. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair market
value of the long-lived asset. Fair market value is determined primarily using the anticipated cash flows discounted at a rate commensurate
with the risk involved. No impairment losses were identified or recorded in the six months ended August 31, 2021 and August 31, 2020 on
the Company&#x2019;s long-lived assets.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock>
    <us-gaap:UseOfEstimates contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_843_eus-gaap--UseOfEstimates_zZy02yAanDT6" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_864_zh126OGe2id5"&gt;Management Estimates&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;The preparation of the unaudited condensed
consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported
amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated
financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those
estimates.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;

</us-gaap:UseOfEstimates>
    <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zgLrZ9cCvKT5" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_863_z2JgNGcBSpwh"&gt;New Accounting Pronouncements&lt;/span&gt; &lt;/i&gt;&lt;/b&gt;- In December 2019, the FASB issued ASU 2019-12,
&#x201c;&lt;i&gt;Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes&lt;/i&gt;.&#x201d; The guidance issued in this update simplifies
the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intra-period
tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for
outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or
rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The ASU became effective for
the Company on March 1, 2021 and is not expected to have a significant impact on the Company&#x2019;s consolidated financial statements.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;In June 2016, the FASB issued ASU 2016-13 - Financial Instruments-Credit Losses-Measurement
of Credit Losses on Financial Instruments. Codification Improvements to Topic 326, Financial Instruments &#x2013; Credit Losses, have been
released in November 2018 (2018-19), November 2019 (2019-10 and 2019-11) and a January 2020 Update (2020-02) that provided additional
guidance on this Topic. This guidance replaces the current incurred loss impairment methodology with a methodology that reflects expected
credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.
For SEC filers meeting certain criteria, the amendments in this ASU are effective for fiscal years, and interim periods within those fiscal
years, beginning after December 15, 2019. For SEC filers that meet the criteria of a smaller reporting company (including this Company)
and for non-SEC registrant public companies and other organizations, the amendments in this ASU are effective for fiscal years, and interim
periods within those fiscal years, beginning after December 15, 2022. Early adoption will be permitted for all organizations for fiscal
years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company is currently in the process of its
analysis of the impact of this guidance on its consolidated financial statements and does not expect the adoption of this guidance to
have a material impact on the Company&#x2019;s consolidated financial statements.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;Other than Accounting Standards Update (&#x201c;ASU&#x201d;) 2019-12 and ASU 2016-13 discussed
above, all new accounting pronouncements issued but not yet effective have been deemed to be not applicable to the Company. Hence, the
adoption of these new accounting pronouncements, once effective, is not expected to have an impact on the Company.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
    <us-gaap:StandardProductWarrantyPolicy contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84A_eus-gaap--StandardProductWarrantyPolicy_zASScQoaHZwk" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86A_zGh1V5x70l1a"&gt;Product Warranty&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - Expected future product warranty expense is recorded when
the product is sold.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:StandardProductWarrantyPolicy>
    <us-gaap:PriorPeriodReclassificationAdjustmentDescription contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_84C_eus-gaap--PriorPeriodReclassificationAdjustmentDescription_zguYGSpU7aVh" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_86D_za1EjU5Sv9v9"&gt;Reclassifications&lt;/span&gt; &lt;/i&gt;&lt;/b&gt;&lt;i&gt;&#x2013;&lt;/i&gt; &lt;span style="font-family: TimesNewRomanPSMT"&gt;Where
appropriate, certain reclassifications have been made to the prior period to conform to the presentations of the current period.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Calibri,sans-serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:PriorPeriodReclassificationAdjustmentDescription>
    <us-gaap:ResearchAndDevelopmentExpensePolicy contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_848_eus-gaap--ResearchAndDevelopmentExpensePolicy_zYo1Q0m99Eac" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_860_zTWRcZZnGjRd"&gt;Research and Product Development Expenses&lt;/span&gt;&lt;/i&gt;&lt;/b&gt;&lt;i&gt; - &lt;/i&gt;Research and product development
expenses represent engineering and other expenditures incurred for developing new products, for refining the Company's existing products
and for developing systems to meet unique customer specifications for potential orders or for new industry applications and are expensed
as incurred.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:ResearchAndDevelopmentExpensePolicy>
    <us-gaap:RevenueRecognitionPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_845_eus-gaap--RevenueRecognitionPolicyTextBlock_z6ijbqEX8Khh" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_863_z3ZWkmKbkCLe"&gt;Revenue Recognition&lt;/span&gt; -&lt;/i&gt;&lt;/b&gt;&#160;The Company recognizes revenue in accordance with
ASC 606, Revenue from Contracts with Customers, the core principle of which is that an entity should recognize revenue to depict the transfer
of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to
receive in exchange for those goods or services.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:RevenueRecognitionPolicyTextBlock>
    <sotk:ShippingAndHandlingPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_846_ecustom--ShippingAndHandlingPolicyTextBlock_z7RHaXujvYu" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_869_zTlsDjxx5Vv"&gt;Shipping and Handling Costs&lt;/span&gt; - &lt;/i&gt;&lt;/b&gt;Shipping and handling costs are included in
cost of sales in the accompanying unaudited consolidated statements of income.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;

</sotk:ShippingAndHandlingPolicyTextBlock>
    <us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_845_eus-gaap--ShareBasedCompensationOptionAndIncentivePlansPolicy_ziQEmvcL9w7g" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_866_zlVA6xexNxH1"&gt;Stock-Based Compensation&lt;/span&gt;&lt;/i&gt;&lt;/b&gt; - The Company currently uses a Black-Scholes option
pricing model to calculate the fair value of its stock options. The fair value of each option is estimated on the date of grant based
on the Black-Scholes options-pricing model utilizing certain assumptions for a risk free interest rate; volatility; and expected remaining
lives of the awards. The Company primarily uses historical data to determine the assumptions to be used in the Black-Scholes model. The
assumptions used in calculating the fair value of share-based payment awards represent management&#x2019;s best estimates, but these estimates
involve inherent uncertainties and the application of management judgment.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;ASC 718 requires the recognition of the fair value of stock compensation expense on a straight
line basis over the requite service period, based on the terms of the award in net income. The Company accounts for forfeitures as they
occur. Although every effort is made to ensure the accuracy of the Company&#x2019;s estimates and assumptions, significant unanticipated
changes in those estimates, interpretations and assumptions may result in recording stock option expense that may materially impact the
Company&#x2019;s financial statements for each respective reporting period.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy>
    <sotk:UncertaintiesPolicyTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_842_ecustom--UncertaintiesPolicyTextBlock_z8Zu9T7kwWEk" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;&lt;span id="xdx_866_z8v0hsVigF11"&gt;Uncertainties&lt;/span&gt; - &lt;/i&gt;&lt;/b&gt;Since early 2020, when the World Health Organization established
the transmissible and pathogenic coronavirus a global pandemic, there have been business slowdowns. The outbreak of such a communicable
disease has resulted in a widespread health crisis which has adversely affected general commercial activity and the economies and financial
markets of many countries, including the United States. As the outbreak of the disease has continued through fiscal 2022, the measures
taken by the governments of countries affected have adversely affected the Company&#x2019;s business, financial condition, and results
of operations. The pandemic had a slight adverse impact on sales and the demand for products in fiscal 2021, resulting in sales that were
less than expected at the beginning of fiscal 2021. &lt;span style="font-size: 8pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

</sotk:UncertaintiesPolicyTextBlock>
    <us-gaap:RevenueFromContractWithCustomerTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_80F_eus-gaap--RevenueFromContractWithCustomerTextBlock_zBqBO3NxHVIk" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;NOTE 3: REVENUE RECOGNITION&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;A majority of the Company&#x2019;s sales revenue is derived primarily
from short term contracts with customers, which, primarily, are in effect for less than twelve months. Sales revenue from manufactured
equipment transferred at a single point in time accounts for a majority of the Company&#x2019;s revenue.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;Sales revenue is recognized when control of the Company&#x2019;s manufactured
equipment is transferred to its customers, in an amount that reflects the consideration the Company expects to receive based upon the
agreed transaction price. The Company&#x2019;s performance obligations are satisfied when its customers take control of the purchased equipment,
which is based on the contract terms. Based on prior experience, the Company reasonably estimates its sales returns and warranty reserves.
Sales are presented net of discounts and allowances. Discounts and allowances are determined when a sale is negotiated. The Company does
not grant its customers or independent representatives, the ability to return equipment nor does it grant price adjustments after a sale
is complete.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;The Company does not capitalize any sales commission costs related
to the acquisition of a contract. All commissions related to a performance obligation that are satisfied at a point in time are expensed
when the customer takes control of the purchased equipment.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;The Company applies the practical expedient in paragraph ASC 606-10-50-14
and does not disclose information about remaining performance obligations that have original expected durations of one-year or less. The
Company applies the transition practical expedient in paragraph ASC 606-10-65-1(f)(3) and does not disclose the amount of the transaction
price allocated to the remaining performance obligations and an explanation of when the Company expects to recognize that amount as revenue.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;At August 31, 2021, the Company had received $&lt;span id="xdx_90B_eus-gaap--CustomerAdvancesAndDeposits_iI_c20210831_z087rsN46pml" title="Cash deposits"&gt;1,917,000&lt;/span&gt; in cash deposits,
and had issued Letters of Credit in the amount of $&lt;span id="xdx_90D_eus-gaap--LineOfCredit_iI_c20210831_zK1kzoxKz9u7" title="Letter of credit"&gt;618,000&lt;/span&gt; to secure these cash deposits. At August 31, 2021, &lt;span id="xdx_908_eus-gaap--LineOfCreditFacilityCollateral_c20210301__20210831_z2M2oWUFJQD" title="Letter of credit, collateral description"&gt;the Company was utilizing
$618,000 of its available credit line to collateralize these letters of credit&lt;/span&gt;.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;At February 28, 2021, the Company had received $&lt;span id="xdx_90B_eus-gaap--CustomerAdvancesAndDeposits_iI_c20210228_zV1knbtw1qca" title="Cash deposits"&gt;1,167,000&lt;/span&gt; in cash
deposits for customer orders. During the six months ended August 31, 2021, the Company recognized $&lt;span id="xdx_90F_eus-gaap--ContractWithCustomerLiabilityRevenueRecognized_c20210301__20210831_zJ0wKzXXTfUh" title="Revenue recognized"&gt;457,000&lt;/span&gt; of these deposits as revenue.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_891_eus-gaap--ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_zgEor2rfOW4a" style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;The Company&#x2019;s sales revenue, by product line is as follows:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0; text-align: justify"&gt;&lt;span id="xdx_8BC_zL0vhHtX0if8" style="display: none"&gt;Revenue Recognition - Sales Revenue by Product Line&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="11" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;Three Months Ended August 31,&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="11" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;Six Months Ended August 31,&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;% of total&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;% of total&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;% of total&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;% of total&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 18%; text-align: left"&gt;Fluxing Systems&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 7%; text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_z7iWhraE9Tbh"&gt;117,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; width: 8%; text-align: right"&gt;&lt;span id="xdx_90C_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zXMISZ9evzye" title="Sales revenue, percent"&gt;3&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 7%; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zoBOb6GhYDUb"&gt;94,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; width: 8%; text-align: right"&gt;&lt;span id="xdx_90C_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zsXtbJNYmodj" title="Sales revenue, percent"&gt;3&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 7%; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_z1lubMvW8TEf"&gt;476,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; width: 8%; text-align: right"&gt;&lt;span id="xdx_90D_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zVMvuYMwS33a" title="Sales revenue, percent"&gt;6&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 7%; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zCY3RTjrPadb"&gt;438,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; width: 8%; text-align: right"&gt;&lt;span id="xdx_906_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zvH3xJM4UDGe" title="Sales revenue, percent"&gt;6&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;Integrated Coating Systems&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zHk6zabPBW03" title="Sales revenue"&gt;565,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90A_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zxK7J1odn6Wh" title="Sales revenue, percent"&gt;14&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_909_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zxnPoj0dBpHf" title="Sales revenue"&gt;673,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_909_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zRE2CRpzJOFc" title="Sales revenue, percent"&gt;19&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90D_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zTxrtVD47Ew3" title="Sales revenue"&gt;720,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_906_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zHtRAPVzG5n3" title="Sales revenue, percent"&gt;9&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_z00NRM7f4hhd" title="Sales revenue"&gt;1,849,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_901_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zrb4WHL78xP8" title="Sales revenue, percent"&gt;27&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;Multi-Axis Coating Systems&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zC8CXnpi8aie" title="Sales revenue"&gt;1,891,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_905_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_ztn0dxesZrw7" title="Sales revenue, percent"&gt;46&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_z9PJsqVZNHYh" title="Sales revenue"&gt;1,985,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_903_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zisdrDMARqae" title="Sales revenue, percent"&gt;57&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90C_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zS5vvCoi8ezf" title="Sales revenue"&gt;3,970,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zadecMtK7VD4" title="Sales revenue, percent"&gt;52&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zkJgTQFGLmdh" title="Sales revenue"&gt;2,898,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_907_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_z0i3USpHAXx3" title="Sales revenue, percent"&gt;42&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;OEM Systems&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zsV6rGPvdPQl" title="Sales revenue"&gt;845,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90D_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zXNYA2Nk6MKf" title="Sales revenue, percent"&gt;21&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zGsatdX4Dmxk" title="Sales revenue"&gt;232,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_z1a0Pk1BFlMe" title="Sales revenue, percent"&gt;7&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_z0XikO4nYcb7" title="Sales revenue"&gt;1,171,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90A_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zW2N124Kko65" title="Sales revenue, percent"&gt;15&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_z55YZfE60BC1" title="Sales revenue"&gt;654,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_901_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zeOh9TSv0INb" title="Sales revenue, percent"&gt;9&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;Other&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zVDu80KGbQm9" title="Sales revenue"&gt;652,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right; padding-bottom: 1pt"&gt;&lt;span id="xdx_906_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_z7mAN5jlMPig" title="Sales revenue, percent"&gt;16&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zLY4u5EJfdu6" title="Sales revenue"&gt;497,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right; padding-bottom: 1pt"&gt;&lt;span id="xdx_90C_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_z4P9tLU2qjo7" title="Sales revenue, percent"&gt;14&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_z619wL3jFB9e" title="Sales revenue"&gt;1,378,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right; padding-bottom: 1pt"&gt;&lt;span id="xdx_904_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zvQdzT25a6ch" title="Sales revenue, percent"&gt;18&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zKoK84BBsPh8" title="Sales revenue"&gt;1,070,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right; padding-bottom: 1pt"&gt;&lt;span id="xdx_900_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zAwLcOVFRH94" title="Sales revenue, percent"&gt;16&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-indent: 9pt"&gt;TOTAL&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--ProductLineMember_zcS3URjE9OU5" title="Sales revenue"&gt;4,070,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Times New Roman,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--ProductLineMember_zNv4AXnrGpM" title="Sales revenue"&gt;3,481,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Times New Roman,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--ProductLineMember_zLKMgRkv3pY" title="Sales revenue"&gt;7,715,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Times New Roman,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--ProductLineMember_zZtTYuvUXh81" title="Sales revenue"&gt;6,909,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Times New Roman,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;


&lt;p id="xdx_8A4_zNxSo6WV8lOf" style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

</us-gaap:RevenueFromContractWithCustomerTextBlock>
    <us-gaap:CustomerAdvancesAndDeposits contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">1917000</us-gaap:CustomerAdvancesAndDeposits>
    <us-gaap:LineOfCredit contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">618000</us-gaap:LineOfCredit>
    <us-gaap:LineOfCreditFacilityCollateral contextRef="From2021-03-01to2021-08-31">the Company was utilizing
$618,000 of its available credit line to collateralize these letters of credit</us-gaap:LineOfCreditFacilityCollateral>
    <us-gaap:CustomerAdvancesAndDeposits contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">1167000</us-gaap:CustomerAdvancesAndDeposits>
    <us-gaap:ContractWithCustomerLiabilityRevenueRecognized
      contextRef="From2021-03-01to2021-08-31"
      decimals="0"
      unitRef="USD">457000</us-gaap:ContractWithCustomerLiabilityRevenueRecognized>
    <us-gaap:ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_891_eus-gaap--ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_zgEor2rfOW4a" style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;The Company&#x2019;s sales revenue, by product line is as follows:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0; text-align: justify"&gt;&lt;span id="xdx_8BC_zL0vhHtX0if8" style="display: none"&gt;Revenue Recognition - Sales Revenue by Product Line&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="11" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;Three Months Ended August 31,&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="11" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;Six Months Ended August 31,&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;% of total&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;% of total&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;% of total&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center"&gt;% of total&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 18%; text-align: left"&gt;Fluxing Systems&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 7%; text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_z7iWhraE9Tbh"&gt;117,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; width: 8%; text-align: right"&gt;&lt;span id="xdx_90C_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zXMISZ9evzye" title="Sales revenue, percent"&gt;3&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 7%; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zoBOb6GhYDUb"&gt;94,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; width: 8%; text-align: right"&gt;&lt;span id="xdx_90C_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zsXtbJNYmodj" title="Sales revenue, percent"&gt;3&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 7%; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_z1lubMvW8TEf"&gt;476,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; width: 8%; text-align: right"&gt;&lt;span id="xdx_90D_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zVMvuYMwS33a" title="Sales revenue, percent"&gt;6&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 7%; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zCY3RTjrPadb"&gt;438,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; width: 8%; text-align: right"&gt;&lt;span id="xdx_906_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zvH3xJM4UDGe" title="Sales revenue, percent"&gt;6&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;Integrated Coating Systems&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zHk6zabPBW03" title="Sales revenue"&gt;565,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90A_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zxK7J1odn6Wh" title="Sales revenue, percent"&gt;14&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_909_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zxnPoj0dBpHf" title="Sales revenue"&gt;673,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_909_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zRE2CRpzJOFc" title="Sales revenue, percent"&gt;19&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90D_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zTxrtVD47Ew3" title="Sales revenue"&gt;720,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_906_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zHtRAPVzG5n3" title="Sales revenue, percent"&gt;9&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_z00NRM7f4hhd" title="Sales revenue"&gt;1,849,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_901_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--IntegratedCoatingSystemsMember_zrb4WHL78xP8" title="Sales revenue, percent"&gt;27&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;Multi-Axis Coating Systems&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zC8CXnpi8aie" title="Sales revenue"&gt;1,891,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_905_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_ztn0dxesZrw7" title="Sales revenue, percent"&gt;46&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_z9PJsqVZNHYh" title="Sales revenue"&gt;1,985,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_903_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zisdrDMARqae" title="Sales revenue, percent"&gt;57&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90C_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zS5vvCoi8ezf" title="Sales revenue"&gt;3,970,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zadecMtK7VD4" title="Sales revenue, percent"&gt;52&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_zkJgTQFGLmdh" title="Sales revenue"&gt;2,898,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_907_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--MultiAxisCoatingSystemsMember_z0i3USpHAXx3" title="Sales revenue, percent"&gt;42&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;OEM Systems&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zsV6rGPvdPQl" title="Sales revenue"&gt;845,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90D_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zXNYA2Nk6MKf" title="Sales revenue, percent"&gt;21&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zGsatdX4Dmxk" title="Sales revenue"&gt;232,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_z1a0Pk1BFlMe" title="Sales revenue, percent"&gt;7&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_z0XikO4nYcb7" title="Sales revenue"&gt;1,171,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90A_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zW2N124Kko65" title="Sales revenue, percent"&gt;15&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_z55YZfE60BC1" title="Sales revenue"&gt;654,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_901_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zeOh9TSv0INb" title="Sales revenue, percent"&gt;9&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;Other&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zVDu80KGbQm9" title="Sales revenue"&gt;652,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right; padding-bottom: 1pt"&gt;&lt;span id="xdx_906_ecustom--SalesRevenuePercent_dp_c20210601__20210831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_z7mAN5jlMPig" title="Sales revenue, percent"&gt;16&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zLY4u5EJfdu6" title="Sales revenue"&gt;497,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right; padding-bottom: 1pt"&gt;&lt;span id="xdx_90C_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_z4P9tLU2qjo7" title="Sales revenue, percent"&gt;14&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_z619wL3jFB9e" title="Sales revenue"&gt;1,378,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right; padding-bottom: 1pt"&gt;&lt;span id="xdx_904_ecustom--SalesRevenuePercent_dp_c20210301__20210831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zvQdzT25a6ch" title="Sales revenue, percent"&gt;18&lt;/span&gt;%&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zKoK84BBsPh8" title="Sales revenue"&gt;1,070,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: italic 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: italic 9pt Cambria,serif; text-align: right; padding-bottom: 1pt"&gt;&lt;span id="xdx_900_ecustom--SalesRevenuePercent_dp_c20200301__20200831__srt--ProductOrServiceAxis__custom--OtherProductLineMember_zAwLcOVFRH94" title="Sales revenue, percent"&gt;16&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-indent: 9pt"&gt;TOTAL&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--ProductLineMember_zcS3URjE9OU5" title="Sales revenue"&gt;4,070,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Times New Roman,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--ProductLineMember_zNv4AXnrGpM" title="Sales revenue"&gt;3,481,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Times New Roman,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--Revenues_c20210301__20210831__srt--ProductOrServiceAxis__custom--ProductLineMember_zLKMgRkv3pY" title="Sales revenue"&gt;7,715,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Times New Roman,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 9pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--Revenues_c20200301__20200831__srt--ProductOrServiceAxis__custom--ProductLineMember_zZtTYuvUXh81" title="Sales revenue"&gt;6,909,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 9pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Times New Roman,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman,serif; text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;


</us-gaap:ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock>
    <us-gaap:Revenues
      contextRef="From2021-06-012021-08-31_custom_FluxingSystemsMember"
      decimals="0"
      unitRef="USD">117000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-06-012021-08-31_custom_FluxingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.03</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-06-012020-08-31_custom_FluxingSystemsMember"
      decimals="0"
      unitRef="USD">94000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-06-012020-08-31_custom_FluxingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.03</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-03-012021-08-31_custom_FluxingSystemsMember"
      decimals="0"
      unitRef="USD">476000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-03-012021-08-31_custom_FluxingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.06</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-03-012020-08-31_custom_FluxingSystemsMember"
      decimals="0"
      unitRef="USD">438000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-03-012020-08-31_custom_FluxingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.06</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-06-012021-08-31_custom_IntegratedCoatingSystemsMember"
      decimals="0"
      unitRef="USD">565000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-06-012021-08-31_custom_IntegratedCoatingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.14</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-06-012020-08-31_custom_IntegratedCoatingSystemsMember"
      decimals="0"
      unitRef="USD">673000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-06-012020-08-31_custom_IntegratedCoatingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.19</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-03-012021-08-31_custom_IntegratedCoatingSystemsMember"
      decimals="0"
      unitRef="USD">720000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-03-012021-08-31_custom_IntegratedCoatingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.09</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-03-012020-08-31_custom_IntegratedCoatingSystemsMember"
      decimals="0"
      unitRef="USD">1849000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-03-012020-08-31_custom_IntegratedCoatingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.27</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-06-012021-08-31_custom_MultiAxisCoatingSystemsMember"
      decimals="0"
      unitRef="USD">1891000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-06-012021-08-31_custom_MultiAxisCoatingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.46</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-06-012020-08-31_custom_MultiAxisCoatingSystemsMember"
      decimals="0"
      unitRef="USD">1985000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-06-012020-08-31_custom_MultiAxisCoatingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.57</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-03-012021-08-31_custom_MultiAxisCoatingSystemsMember"
      decimals="0"
      unitRef="USD">3970000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-03-012021-08-31_custom_MultiAxisCoatingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.52</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-03-012020-08-31_custom_MultiAxisCoatingSystemsMember"
      decimals="0"
      unitRef="USD">2898000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-03-012020-08-31_custom_MultiAxisCoatingSystemsMember"
      decimals="INF"
      unitRef="Pure">0.42</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-06-012021-08-31_custom_OemSystemsMember"
      decimals="0"
      unitRef="USD">845000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-06-012021-08-31_custom_OemSystemsMember"
      decimals="INF"
      unitRef="Pure">0.21</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-06-012020-08-31_custom_OemSystemsMember"
      decimals="0"
      unitRef="USD">232000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-06-012020-08-31_custom_OemSystemsMember"
      decimals="INF"
      unitRef="Pure">0.07</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-03-012021-08-31_custom_OemSystemsMember"
      decimals="0"
      unitRef="USD">1171000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-03-012021-08-31_custom_OemSystemsMember"
      decimals="INF"
      unitRef="Pure">0.15</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-03-012020-08-31_custom_OemSystemsMember"
      decimals="0"
      unitRef="USD">654000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-03-012020-08-31_custom_OemSystemsMember"
      decimals="INF"
      unitRef="Pure">0.09</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-06-012021-08-31_custom_OtherProductLineMember"
      decimals="0"
      unitRef="USD">652000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-06-012021-08-31_custom_OtherProductLineMember"
      decimals="INF"
      unitRef="Pure">0.16</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-06-012020-08-31_custom_OtherProductLineMember"
      decimals="0"
      unitRef="USD">497000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-06-012020-08-31_custom_OtherProductLineMember"
      decimals="INF"
      unitRef="Pure">0.14</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-03-012021-08-31_custom_OtherProductLineMember"
      decimals="0"
      unitRef="USD">1378000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2021-03-012021-08-31_custom_OtherProductLineMember"
      decimals="INF"
      unitRef="Pure">0.18</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2020-03-012020-08-31_custom_OtherProductLineMember"
      decimals="0"
      unitRef="USD">1070000</us-gaap:Revenues>
    <sotk:SalesRevenuePercent
      contextRef="From2020-03-012020-08-31_custom_OtherProductLineMember"
      decimals="INF"
      unitRef="Pure">0.16</sotk:SalesRevenuePercent>
    <us-gaap:Revenues
      contextRef="From2021-06-012021-08-31_custom_ProductLineMember"
      decimals="0"
      unitRef="USD">4070000</us-gaap:Revenues>
    <us-gaap:Revenues
      contextRef="From2020-06-012020-08-31_custom_ProductLineMember"
      decimals="0"
      unitRef="USD">3481000</us-gaap:Revenues>
    <us-gaap:Revenues
      contextRef="From2021-03-012021-08-31_custom_ProductLineMember"
      decimals="0"
      unitRef="USD">7715000</us-gaap:Revenues>
    <us-gaap:Revenues
      contextRef="From2020-03-012020-08-31_custom_ProductLineMember"
      decimals="0"
      unitRef="USD">6909000</us-gaap:Revenues>
    <us-gaap:InventoryDisclosureTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_808_eus-gaap--InventoryDisclosureTextBlock_z3yze6UeNO4h" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;NOTE 4: INVENTORIES&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_89C_eus-gaap--ScheduleOfInventoryCurrentTableTextBlock_zPI09ToGMW06" style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in"&gt;Inventories consist of the following:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in"&gt;&lt;span id="xdx_8BE_zh976H9pIou6" style="display: none"&gt;Inventories - Schedule of Inventory, Current&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, 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="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_492_20210831_z83zRtCTLdI5" style="font-size: 9pt; font-weight: bold; text-align: center"&gt;August 31,&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49B_20210228_zE3wt5pKnKu1" style="font-size: 9pt; font-weight: bold; text-align: center"&gt;February&#160;28,&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40E_eus-gaap--InventoryRawMaterials_iI_maIGzQr1_zPjaZl0WCEn1" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="width: 72%; text-align: left"&gt;Raw materials and subassemblies&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;1,299,693&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;1,081,591&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40F_eus-gaap--InventoryFinishedGoods_iI_maIGzQr1_z16D2d3FgNZ5" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Finished goods&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;580,383&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;786,785&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_403_eus-gaap--InventoryWorkInProcess_iI_maIGzQr1_znLuWNVTUwNc" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Work in process&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;1,303,140&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;1,027,010&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40D_eus-gaap--InventoryGross_iTI_mtIGzQr1_maINzET9_zUYZbSlxno8k" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Total&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;3,183,216&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;2,895,386&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_405_eus-gaap--InventoryValuationReserves_iNI_di_msINzET9_znx5CCYf14Ch" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Less: Allowance&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(259,361&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(284,280&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40F_eus-gaap--InventoryNet_iTI_mtINzET9_zjdxdowX6jsk" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Net inventories&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;2,923,855&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;2,611,106&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_8A9_zxyefzAbRJri" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

</us-gaap:InventoryDisclosureTextBlock>
    <us-gaap:ScheduleOfInventoryCurrentTableTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_89C_eus-gaap--ScheduleOfInventoryCurrentTableTextBlock_zPI09ToGMW06" style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in"&gt;Inventories consist of the following:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in"&gt;&lt;span id="xdx_8BE_zh976H9pIou6" style="display: none"&gt;Inventories - Schedule of Inventory, Current&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, 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="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_492_20210831_z83zRtCTLdI5" style="font-size: 9pt; font-weight: bold; text-align: center"&gt;August 31,&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49B_20210228_zE3wt5pKnKu1" style="font-size: 9pt; font-weight: bold; text-align: center"&gt;February&#160;28,&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40E_eus-gaap--InventoryRawMaterials_iI_maIGzQr1_zPjaZl0WCEn1" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="width: 72%; text-align: left"&gt;Raw materials and subassemblies&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;1,299,693&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;1,081,591&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40F_eus-gaap--InventoryFinishedGoods_iI_maIGzQr1_z16D2d3FgNZ5" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Finished goods&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;580,383&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;786,785&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_403_eus-gaap--InventoryWorkInProcess_iI_maIGzQr1_znLuWNVTUwNc" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Work in process&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;1,303,140&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;1,027,010&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40D_eus-gaap--InventoryGross_iTI_mtIGzQr1_maINzET9_zUYZbSlxno8k" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Total&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;3,183,216&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;2,895,386&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_405_eus-gaap--InventoryValuationReserves_iNI_di_msINzET9_znx5CCYf14Ch" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Less: Allowance&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(259,361&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(284,280&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40F_eus-gaap--InventoryNet_iTI_mtINzET9_zjdxdowX6jsk" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Net inventories&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;2,923,855&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;2,611,106&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:ScheduleOfInventoryCurrentTableTextBlock>
    <us-gaap:InventoryRawMaterials contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">1299693</us-gaap:InventoryRawMaterials>
    <us-gaap:InventoryRawMaterials contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">1081591</us-gaap:InventoryRawMaterials>
    <us-gaap:InventoryFinishedGoods contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">580383</us-gaap:InventoryFinishedGoods>
    <us-gaap:InventoryFinishedGoods contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">786785</us-gaap:InventoryFinishedGoods>
    <us-gaap:InventoryWorkInProcess contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">1303140</us-gaap:InventoryWorkInProcess>
    <us-gaap:InventoryWorkInProcess contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">1027010</us-gaap:InventoryWorkInProcess>
    <us-gaap:InventoryGross contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">3183216</us-gaap:InventoryGross>
    <us-gaap:InventoryGross contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">2895386</us-gaap:InventoryGross>
    <us-gaap:InventoryValuationReserves contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">259361</us-gaap:InventoryValuationReserves>
    <us-gaap:InventoryValuationReserves contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">284280</us-gaap:InventoryValuationReserves>
    <us-gaap:InventoryNet contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">2923855</us-gaap:InventoryNet>
    <us-gaap:InventoryNet contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">2611106</us-gaap:InventoryNet>
    <us-gaap:StockholdersEquityNoteDisclosureTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_80B_eus-gaap--StockholdersEquityNoteDisclosureTextBlock_zjrz50iBnvw5" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;NOTE 5: STOCK OPTIONS&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;Under the 2013 Stock Incentive Plan ("2013 Plan"), options can be granted
to officers, directors, consultants and employees of the Company and its subsidiaries to purchase up to &lt;span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_zv5V2oTQKsyf" title="Stock options shares available for grants"&gt;2,500,000&lt;/span&gt; shares of the Company's
common stock. Under the 2013 Plan options expire &lt;span id="xdx_900_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_pid_dtxL_c20210301__20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_zmI9lyzeLH4e" title="Options, expiration period::XDX::P10Y"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0654"&gt;ten years&lt;/span&gt;&lt;/span&gt; after the date of grant. As of August 31, 2021, there were &lt;span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_zCeCEPlHXsjb" title="Stock options, outstanding"&gt;442,625&lt;/span&gt; options
outstanding under the 2013 Plan, of which &lt;span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_c20210301__20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_z19VcYZQZJVf" title="Stock options, vested"&gt;306,500&lt;/span&gt; are vested.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;Under the 2003 Stock Incentive Plan, as amended ("2003 Plan"), until
May 2013, options were available to be granted to officers, directors, consultants and employees of the Company and its subsidiaries to
purchase up to &lt;span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2003Member_zK1Us7fg1WVh" title="Stock options shares available for grants"&gt;1,500,000&lt;/span&gt; shares of the Company's common stock. As of August 31, 2021, there were &lt;span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2003Member_zwciW6UK59g" title="Stock options, outstanding"&gt;15,000&lt;/span&gt; options outstanding and vested
under the 2003 Plan, under which no additional options may be granted.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;During the three months ended August 31, 2021, &lt;span id="xdx_907_ecustom--OptionsExercisedNetCashlessBasis_c20210601__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zPWXy380Fpcg" title="Options exercised, net cashless basis"&gt;38,500&lt;/span&gt; options were exercised
on a net cashless basis, which resulted in &lt;span id="xdx_904_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_c20210601__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zc3TkUV87Vzi" title="Exercise of stock options"&gt;28,728&lt;/span&gt; shares of common stock being issued. During the six months ended August 31, 2021, &lt;span id="xdx_908_ecustom--OptionsExercisedNetCashlessBasis_c20210301__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_z5rnwQwW6gX7" title="Options exercised, net cashless basis"&gt;101,834&lt;/span&gt;
options were exercised on a net cashless basis, which resulted in &lt;span id="xdx_900_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_c20210301__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_z8cag67jv0wl" title="Exercise of stock options"&gt;78,629&lt;/span&gt; shares of common stock being issued.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

</us-gaap:StockholdersEquityNoteDisclosureTextBlock>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
      contextRef="AsOf2021-08-31_custom_StockIncentivePlan2013Member"
      decimals="INF"
      unitRef="Shares">2500000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
      contextRef="AsOf2021-08-31_custom_StockIncentivePlan2013Member"
      decimals="INF"
      unitRef="Shares">442625</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares
      contextRef="From2021-03-012021-08-31_custom_StockIncentivePlan2013Member"
      decimals="INF"
      unitRef="Shares">306500</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
      contextRef="AsOf2021-08-31_custom_StockIncentivePlan2003Member"
      decimals="INF"
      unitRef="Shares">1500000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
      contextRef="AsOf2021-08-31_custom_StockIncentivePlan2003Member"
      decimals="INF"
      unitRef="Shares">15000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>
    <sotk:OptionsExercisedNetCashlessBasis
      contextRef="From2021-06-012021-08-31_us-gaap_CommonStockMember"
      decimals="INF"
      unitRef="Shares">38500</sotk:OptionsExercisedNetCashlessBasis>
    <us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
      contextRef="From2021-06-012021-08-31_us-gaap_CommonStockMember"
      decimals="INF"
      unitRef="Shares">28728</us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised>
    <sotk:OptionsExercisedNetCashlessBasis
      contextRef="From2021-03-012021-08-31_us-gaap_CommonStockMember"
      decimals="INF"
      unitRef="Shares">101834</sotk:OptionsExercisedNetCashlessBasis>
    <us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
      contextRef="From2021-03-012021-08-31_us-gaap_CommonStockMember"
      decimals="INF"
      unitRef="Shares">78629</us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised>
    <us-gaap:ShareholdersEquityAndShareBasedPaymentsTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_801_eus-gaap--ShareholdersEquityAndShareBasedPaymentsTextBlock_zsKth4OQoI5c" style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;&lt;b&gt;NOTE 6: STOCK BASED COMPENSATION&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;The Company adopted ASC 718, &#x201c;Share Based Payments.&#x201d; which requires companies
to expense the value of employee stock options and similar awards.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;During the three and six months ended August 31, 2021, the Company granted options to acquire
&lt;span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20210601__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zWysCH2BbrW" title="Options granted"&gt;&lt;span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20210301__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zQmxOdNR2Zri" title="Options granted"&gt;62,750&lt;/span&gt;&lt;/span&gt; shares to employees and directors exercisable at $&lt;span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210301__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_z6l8oK1Ou6kb" title="Options, exercisable price"&gt;&lt;span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210601__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_zN2vXtODWEJ2" title="Options, exercisable price"&gt;3.19&lt;/span&gt;&lt;/span&gt;. The options granted to employees and directors vest over &lt;span id="xdx_902_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_dtxL_c20210301__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_z62JRHIztYMe" title="Options, vesting period::XDX::P3Y"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0682"&gt;three years&lt;/span&gt;&lt;/span&gt; and
expire in &lt;span id="xdx_902_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_dtxL_c20210301__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_zRWIk2JFs7Gk" title="Options, expiration period::XDX::P10Y"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0684"&gt;ten years&lt;/span&gt;&lt;/span&gt;. The options had a weighted average grant date fair value of $&lt;span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c20210301__20210831_znMFyahJm333" title="Weighted average grant date fair value, per share"&gt;1.60&lt;/span&gt; per share.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_89F_eus-gaap--ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_zcF1E5ftqq8c" style="font: 10pt Cambria,serif; margin: 0"&gt;The weighted-average fair value of options are estimated on the date of grant using the
Black-Scholes options-pricing model. The weighted-average Black-Scholes assumptions are as follows:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0; display: none"&gt;&lt;span id="xdx_8BC_zzXROrAoEf1"&gt;Weighted-average Black-Scholes assumptions&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, 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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Six Months Ended &lt;br/&gt; August 31, 2021&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left"&gt;Expected Life&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_907_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20210301__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember__srt--RangeAxis__srt--MinimumMember_zu36bwwwEDy3" title="Expected life (in years)"&gt;5&lt;/span&gt; - &lt;span id="xdx_902_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20210301__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember__srt--RangeAxis__srt--MaximumMember_zHWywRc0GL7c" title="Expected life (in years)"&gt;8&lt;/span&gt; years&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Risk free interest rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_dp_c20210301__20210831_zdikK6ncEaGb" title="Risk free interest rate, minimum"&gt;0.78&lt;/span&gt;% - &lt;span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_dp_c20210301__20210831_zNgjD4Tb8lj2" title="Risk free interest rate, maximum"&gt;1.04&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left"&gt;Expected volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_dp_c20210301__20210831_zoT5EXGNjzda" title="Expected volatility, minimum"&gt;50.73&lt;/span&gt;% - &lt;span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_dp_c20210301__20210831_zOOL7Ngfwqcb" title="Expected volatility, maximum"&gt;52.1&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 82%; text-align: left"&gt;Expected dividend yield&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 16%; text-align: center"&gt;&lt;span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_c20210301__20210831_zqsyOJ7KZN2g" title="Expected dividend yield"&gt;0&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p id="xdx_8AD_zotkSEGbFgF4" style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;Total compensation related to non-vested options not yet recognized as of August
31, 2021 was $&lt;span id="xdx_90C_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_iI_pp0p0_c20210831_zWfNFYw6B3ca" title="Compensation expense yet to be recognized"&gt;243,000&lt;/span&gt; and will be recognized on a straight line basis over the next &lt;span id="xdx_905_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dtY_c20210301__20210831_zRGDv289eIdc" title="Period for compensation expense to be recognized"&gt;2.5&lt;/span&gt; years.&lt;span style="font-size: 8pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"&gt;For the three and six months ended August 31, 2021 and 2020, net income and earnings
per share reflect the actual deduction for stock-based compensation expense. The impact of applying ASC 718 approximated $&lt;span id="xdx_902_eus-gaap--StockOptionPlanExpense_pp0p0_c20210601__20210831_zVU4pVcOcZij" title="Additional stock-based compensation expense as a result of applying ASC 718"&gt;19,000&lt;/span&gt; and $&lt;span id="xdx_902_eus-gaap--StockOptionPlanExpense_pp0p0_c20200601__20200831_zHhcTAEsNZ81" title="Additional stock-based compensation expense as a result of applying ASC 718"&gt;8,000&lt;/span&gt;
in additional compensation expense during the three months ended August 31, 2021 and 2020, respectively. The impact of applying ASC 718
approximated $&lt;span id="xdx_906_eus-gaap--StockOptionPlanExpense_pn3p0_c20210301__20210831_zl0HdIYbQ9ff"&gt;41,000&lt;/span&gt; and $&lt;span id="xdx_90C_eus-gaap--StockOptionPlanExpense_pn3p0_c20200301__20200831_zqjr13y3Jg68"&gt;16,000&lt;/span&gt; in additional compensation expense during the six months ended August 31, 2021 and 2020, respectively.
Such amounts are included in general and administrative expenses on the unaudited consolidated statements of income.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:ShareholdersEquityAndShareBasedPaymentsTextBlock>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
      contextRef="From2021-06-012021-08-31_us-gaap_EmployeeStockOptionMember"
      decimals="INF"
      unitRef="Shares">62750</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
      contextRef="From2021-03-012021-08-31_us-gaap_EmployeeStockOptionMember"
      decimals="INF"
      unitRef="Shares">62750</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
    <us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
      contextRef="From2021-03-012021-08-31_custom_EmployeesAndDirectorsMember"
      decimals="INF"
      unitRef="USDPShares">3.19</us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>
    <us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
      contextRef="From2021-06-012021-08-31_custom_EmployeesAndDirectorsMember"
      decimals="INF"
      unitRef="USDPShares">3.19</us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="USDPShares">1.60</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue>
    <us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_89F_eus-gaap--ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_zcF1E5ftqq8c" style="font: 10pt Cambria,serif; margin: 0"&gt;The weighted-average fair value of options are estimated on the date of grant using the
Black-Scholes options-pricing model. The weighted-average Black-Scholes assumptions are as follows:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0; display: none"&gt;&lt;span id="xdx_8BC_zzXROrAoEf1"&gt;Weighted-average Black-Scholes assumptions&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, 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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Six Months Ended &lt;br/&gt; August 31, 2021&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left"&gt;Expected Life&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_907_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20210301__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember__srt--RangeAxis__srt--MinimumMember_zu36bwwwEDy3" title="Expected life (in years)"&gt;5&lt;/span&gt; - &lt;span id="xdx_902_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20210301__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember__srt--RangeAxis__srt--MaximumMember_zHWywRc0GL7c" title="Expected life (in years)"&gt;8&lt;/span&gt; years&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Risk free interest rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_dp_c20210301__20210831_zdikK6ncEaGb" title="Risk free interest rate, minimum"&gt;0.78&lt;/span&gt;% - &lt;span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_dp_c20210301__20210831_zNgjD4Tb8lj2" title="Risk free interest rate, maximum"&gt;1.04&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left"&gt;Expected volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_dp_c20210301__20210831_zoT5EXGNjzda" title="Expected volatility, minimum"&gt;50.73&lt;/span&gt;% - &lt;span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_dp_c20210301__20210831_zOOL7Ngfwqcb" title="Expected volatility, maximum"&gt;52.1&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 82%; text-align: left"&gt;Expected dividend yield&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 16%; text-align: center"&gt;&lt;span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_c20210301__20210831_zqsyOJ7KZN2g" title="Expected dividend yield"&gt;0&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

</us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1 contextRef="From2021-03-012021-08-31_us-gaap_EmployeeStockOptionMember_srt_MinimumMember">P5Y</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1 contextRef="From2021-03-012021-08-31_us-gaap_EmployeeStockOptionMember_srt_MaximumMember">P8Y</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="Pure">0.0078</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="Pure">0.0104</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="Pure">0.5073</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="Pure">0.521</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="Pure">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate>
    <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions contextRef="AsOf2021-08-31" decimals="0" unitRef="USD">243000</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions>
    <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1 contextRef="From2021-03-01to2021-08-31">P2Y6M</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1>
    <us-gaap:StockOptionPlanExpense
      contextRef="From2021-06-012021-08-31"
      decimals="0"
      unitRef="USD">19000</us-gaap:StockOptionPlanExpense>
    <us-gaap:StockOptionPlanExpense
      contextRef="From2020-06-012020-08-31"
      decimals="0"
      unitRef="USD">8000</us-gaap:StockOptionPlanExpense>
    <us-gaap:StockOptionPlanExpense
      contextRef="From2021-03-01to2021-08-31"
      decimals="-3"
      unitRef="USD">41000</us-gaap:StockOptionPlanExpense>
    <us-gaap:StockOptionPlanExpense
      contextRef="From2020-03-012020-08-31"
      decimals="-3"
      unitRef="USD">16000</us-gaap:StockOptionPlanExpense>
    <us-gaap:EarningsPerShareTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_80D_eus-gaap--EarningsPerShareTextBlock_z819ap8uNt5a" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;NOTE 7: EARNINGS PER SHARE&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_899_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zrl1IR2AHKsk" style="font: 10pt Cambria,serif; margin: 0"&gt;The following table sets forth the computation of basic and diluted earnings per share:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_8BF_zcXJdpaWOFkk" style="display: none"&gt;Earnings Per Share - Computation of basic and diluted earnings per share&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%"&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_497_20210301__20210831_zNfojvHn77x7" style="text-align: center"&gt;&#160;&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" id="xdx_499_20200301__20200831_z6svKBIasf8" style="text-align: center"&gt;&#160;&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" id="xdx_49A_20210601__20210831_ztj2Rxvn4arf" style="text-align: center"&gt;&#160;&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" id="xdx_49B_20200601__20200831_z2eL5ZDCncx1" style="text-align: center"&gt;&#160;&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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Six&#160;Months&#160;Ended&lt;br/&gt; August 31,&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Three&#160;Months&#160;Ended &lt;br/&gt; August 31,&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&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="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;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_40F_eus-gaap--ProfitLoss_zGqtvxWyZLFi" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="width: 44%; text-align: left; padding-bottom: 2.5pt; text-indent: -0.1in; padding-left: 0.1in"&gt;Numerator for basic and diluted earnings per share&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;1,610,576&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;345,691&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;343,824&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;177,763&lt;/td&gt;&lt;td style="width: 1%; 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&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;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--WeightedAverageNumberOfSharesOutstandingBasic_z5s7t58jV5I2" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-indent: -0.1in; padding-left: 0.1in"&gt;Denominator for basic earnings per share &#x2013; weighted average&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;15,500,952&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;15,410,952&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;15,507,484&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;15,424,126&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;&#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;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_40E_eus-gaap--DilutiveSecuritiesAbstract_iB_z4gB8zSerdy2" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left"&gt;Effects of dilutive securities&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 id="xdx_403_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_i01_zkU579fH1Lsg" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.1in; padding-left: 0.2in"&gt;Stock options for employees, directors and outside consultants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;112,978&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;119,958&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;94,875&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;108,884&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&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;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--WeightedAverageNumberOfDilutedSharesOutstanding_i01_zgEsQCz7IRmh" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt; text-indent: -0.1in; padding-left: 0.1in"&gt;Denominator for diluted earnings per share&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;15,613,930&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;15,530,910&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;15,602,359&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;15,533,010&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(230,239,255)"&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;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_408_eus-gaap--EarningsPerShareBasic_i01_z1D6uNTFruYj" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Basic Earnings Per Share&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.10&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.02&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.02&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.01&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_404_eus-gaap--EarningsPerShareDiluted_i01_zlDunZJNftR4" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Diluted Earnings Per Share&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.10&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.02&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.02&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.01&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_8A4_zNdVTF9UbPJc" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;




&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

</us-gaap:EarningsPerShareTextBlock>
    <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_899_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zrl1IR2AHKsk" style="font: 10pt Cambria,serif; margin: 0"&gt;The following table sets forth the computation of basic and diluted earnings per share:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_8BF_zcXJdpaWOFkk" style="display: none"&gt;Earnings Per Share - Computation of basic and diluted earnings per share&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%"&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_497_20210301__20210831_zNfojvHn77x7" style="text-align: center"&gt;&#160;&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" id="xdx_499_20200301__20200831_z6svKBIasf8" style="text-align: center"&gt;&#160;&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" id="xdx_49A_20210601__20210831_ztj2Rxvn4arf" style="text-align: center"&gt;&#160;&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" id="xdx_49B_20200601__20200831_z2eL5ZDCncx1" style="text-align: center"&gt;&#160;&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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Six&#160;Months&#160;Ended&lt;br/&gt; August 31,&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;Three&#160;Months&#160;Ended &lt;br/&gt; August 31,&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&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="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;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_40F_eus-gaap--ProfitLoss_zGqtvxWyZLFi" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="width: 44%; text-align: left; padding-bottom: 2.5pt; text-indent: -0.1in; padding-left: 0.1in"&gt;Numerator for basic and diluted earnings per share&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;1,610,576&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;345,691&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;343,824&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"&gt;177,763&lt;/td&gt;&lt;td style="width: 1%; 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&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;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--WeightedAverageNumberOfSharesOutstandingBasic_z5s7t58jV5I2" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-indent: -0.1in; padding-left: 0.1in"&gt;Denominator for basic earnings per share &#x2013; weighted average&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;15,500,952&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;15,410,952&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;15,507,484&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;15,424,126&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;&#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;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_40E_eus-gaap--DilutiveSecuritiesAbstract_iB_z4gB8zSerdy2" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left"&gt;Effects of dilutive securities&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 id="xdx_403_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_i01_zkU579fH1Lsg" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.1in; padding-left: 0.2in"&gt;Stock options for employees, directors and outside consultants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;112,978&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;119,958&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;94,875&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;108,884&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&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;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--WeightedAverageNumberOfDilutedSharesOutstanding_i01_zgEsQCz7IRmh" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt; text-indent: -0.1in; padding-left: 0.1in"&gt;Denominator for diluted earnings per share&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;15,613,930&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;15,530,910&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;15,602,359&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;15,533,010&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(230,239,255)"&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;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_408_eus-gaap--EarningsPerShareBasic_i01_z1D6uNTFruYj" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Basic Earnings Per Share&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.10&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.02&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.02&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.01&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_404_eus-gaap--EarningsPerShareDiluted_i01_zlDunZJNftR4" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Diluted Earnings Per Share&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.10&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.02&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;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.02&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;0.01&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:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
    <us-gaap:ProfitLoss
      contextRef="From2021-03-01to2021-08-31"
      decimals="0"
      unitRef="USD">1610576</us-gaap:ProfitLoss>
    <us-gaap:ProfitLoss
      contextRef="From2020-03-012020-08-31"
      decimals="0"
      unitRef="USD">345691</us-gaap:ProfitLoss>
    <us-gaap:ProfitLoss
      contextRef="From2021-06-012021-08-31"
      decimals="0"
      unitRef="USD">343824</us-gaap:ProfitLoss>
    <us-gaap:ProfitLoss
      contextRef="From2020-06-012020-08-31"
      decimals="0"
      unitRef="USD">177763</us-gaap:ProfitLoss>
    <us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="Shares">15500952</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
    <us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
      contextRef="From2020-03-012020-08-31"
      decimals="INF"
      unitRef="Shares">15410952</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
    <us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
      contextRef="From2021-06-012021-08-31"
      decimals="INF"
      unitRef="Shares">15507484</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
    <us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
      contextRef="From2020-06-012020-08-31"
      decimals="INF"
      unitRef="Shares">15424126</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="Shares">112978</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
      contextRef="From2020-03-012020-08-31"
      decimals="INF"
      unitRef="Shares">119958</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
      contextRef="From2021-06-012021-08-31"
      decimals="INF"
      unitRef="Shares">94875</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
      contextRef="From2020-06-012020-08-31"
      decimals="INF"
      unitRef="Shares">108884</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
    <us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="Shares">15613930</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
    <us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
      contextRef="From2020-03-012020-08-31"
      decimals="INF"
      unitRef="Shares">15530910</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
    <us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
      contextRef="From2021-06-012021-08-31"
      decimals="INF"
      unitRef="Shares">15602359</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
    <us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
      contextRef="From2020-06-012020-08-31"
      decimals="INF"
      unitRef="Shares">15533010</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
    <us-gaap:EarningsPerShareBasic
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="USDPShares">0.10</us-gaap:EarningsPerShareBasic>
    <us-gaap:EarningsPerShareBasic
      contextRef="From2020-03-012020-08-31"
      decimals="INF"
      unitRef="USDPShares">0.02</us-gaap:EarningsPerShareBasic>
    <us-gaap:EarningsPerShareBasic
      contextRef="From2021-06-012021-08-31"
      decimals="INF"
      unitRef="USDPShares">0.02</us-gaap:EarningsPerShareBasic>
    <us-gaap:EarningsPerShareBasic
      contextRef="From2020-06-012020-08-31"
      decimals="INF"
      unitRef="USDPShares">0.01</us-gaap:EarningsPerShareBasic>
    <us-gaap:EarningsPerShareDiluted
      contextRef="From2021-03-01to2021-08-31"
      decimals="INF"
      unitRef="USDPShares">0.10</us-gaap:EarningsPerShareDiluted>
    <us-gaap:EarningsPerShareDiluted
      contextRef="From2020-03-012020-08-31"
      decimals="INF"
      unitRef="USDPShares">0.02</us-gaap:EarningsPerShareDiluted>
    <us-gaap:EarningsPerShareDiluted
      contextRef="From2021-06-012021-08-31"
      decimals="INF"
      unitRef="USDPShares">0.02</us-gaap:EarningsPerShareDiluted>
    <us-gaap:EarningsPerShareDiluted
      contextRef="From2020-06-012020-08-31"
      decimals="INF"
      unitRef="USDPShares">0.01</us-gaap:EarningsPerShareDiluted>
    <us-gaap:LongTermDebtTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_804_eus-gaap--LongTermDebtTextBlock_zdT6jcejPhd4" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;NOTE 8: LONG TERM DEBT&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

&lt;p id="xdx_890_eus-gaap--ScheduleOfDebtTableTextBlock_zk4VB9ymkBek" style="font: 10pt Cambria,serif; margin: 0"&gt;Long-term debt consists of the following:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_8BC_zRnMbnBcladj" style="display: none"&gt;Long Term Debt - Schedule of Long-Term Debt&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, 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="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49A_20210831_zl04mi8gTRy8" style="font-size: 9pt; font-weight: bold; text-align: center"&gt;August 31,&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_491_20210228_zyb31wuiS5a1" style="font-size: 9pt; font-weight: bold; text-align: center"&gt;February 28,&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="width: 72%; text-align: left; padding-bottom: 1pt"&gt;Note Payable, bank, unsecured, Paycheck Protection Program funding, initially scheduled to be payable in monthly installments of principal and interest of $&lt;span id="xdx_902_eus-gaap--DebtInstrumentPeriodicPayment_c20200301__20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zGsl2ikbNqSl" title="Monthly installments of principal and interest"&gt;56,370&lt;/span&gt; through April 2022. Interest rate &lt;span id="xdx_90E_eus-gaap--DebtInstrumentInterestRateStatedPercentage_iI_dp_c20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_z7hoR7JsIN1i" title="Interest rate"&gt;1&lt;/span&gt;%. &lt;span id="xdx_90E_eus-gaap--DebtInstrumentTerm_dtY_c20200301__20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zVxljkx257S5" title="Maturity"&gt;2&lt;/span&gt;-year term. Under the terms of the CARES Act, forgiveness for all or a portion of the loan may be granted based upon use of the loan proceeds for eligible payroll and related payroll costs and other qualified expenses. The Company applied for forgiveness of this obligation in December 2020. Under the Paycheck Protection Program Flexibility Act, payments of principal and interest shall be deferred until the date that the Small Business Administration remits the forgiveness amount to the Company&#x2019;s lender or determines that some or all of the PPP loan is not eligible for forgiveness. If all or a portion of the loan is not forgiven, the unforgiven balance and accrued interest shall be payable during the remainder of the term of the loan. The SBA forgave this loan in its entirety in April 2021. During the six months ended August 31, 2021, the Company recorded a gain on the forgiveness of the PPP Loan and accrued interest in the amount of $&lt;span id="xdx_90D_eus-gaap--DebtInstrumentDecreaseForgiveness_c20210301__20210831__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zbZOTh4WJ3id" title="Gain on forgiveness of debt"&gt;1,005,372&lt;/span&gt;. The gain on the forgiveness of the PPP Loan is a non-taxable event.&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; width: 10%; text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--LongTermDebt_iI_c20210831__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zjq9ifv5cRfl" title="Long-term debt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0765"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; width: 10%; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--LongTermDebt_iI_c20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zY4dmUrx7rBb" title="Long-term debt"&gt;1,001,640&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&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 id="xdx_408_eus-gaap--LongTermDebt_iI_zy7uBVW1FrIi" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Total 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 style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0769"&gt;&#x2014;&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="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;1,001,640&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_znRBTtS5AVUa" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

</us-gaap:LongTermDebtTextBlock>
    <us-gaap:ScheduleOfDebtTableTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_890_eus-gaap--ScheduleOfDebtTableTextBlock_zk4VB9ymkBek" style="font: 10pt Cambria,serif; margin: 0"&gt;Long-term debt consists of the following:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_8BC_zRnMbnBcladj" style="display: none"&gt;Long Term Debt - Schedule of Long-Term Debt&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, 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="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49A_20210831_zl04mi8gTRy8" style="font-size: 9pt; font-weight: bold; text-align: center"&gt;August 31,&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_491_20210228_zyb31wuiS5a1" style="font-size: 9pt; font-weight: bold; text-align: center"&gt;February 28,&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold"&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="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 9pt; font-weight: bold"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="width: 72%; text-align: left; padding-bottom: 1pt"&gt;Note Payable, bank, unsecured, Paycheck Protection Program funding, initially scheduled to be payable in monthly installments of principal and interest of $&lt;span id="xdx_902_eus-gaap--DebtInstrumentPeriodicPayment_c20200301__20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zGsl2ikbNqSl" title="Monthly installments of principal and interest"&gt;56,370&lt;/span&gt; through April 2022. Interest rate &lt;span id="xdx_90E_eus-gaap--DebtInstrumentInterestRateStatedPercentage_iI_dp_c20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_z7hoR7JsIN1i" title="Interest rate"&gt;1&lt;/span&gt;%. &lt;span id="xdx_90E_eus-gaap--DebtInstrumentTerm_dtY_c20200301__20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zVxljkx257S5" title="Maturity"&gt;2&lt;/span&gt;-year term. Under the terms of the CARES Act, forgiveness for all or a portion of the loan may be granted based upon use of the loan proceeds for eligible payroll and related payroll costs and other qualified expenses. The Company applied for forgiveness of this obligation in December 2020. Under the Paycheck Protection Program Flexibility Act, payments of principal and interest shall be deferred until the date that the Small Business Administration remits the forgiveness amount to the Company&#x2019;s lender or determines that some or all of the PPP loan is not eligible for forgiveness. If all or a portion of the loan is not forgiven, the unforgiven balance and accrued interest shall be payable during the remainder of the term of the loan. The SBA forgave this loan in its entirety in April 2021. During the six months ended August 31, 2021, the Company recorded a gain on the forgiveness of the PPP Loan and accrued interest in the amount of $&lt;span id="xdx_90D_eus-gaap--DebtInstrumentDecreaseForgiveness_c20210301__20210831__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zbZOTh4WJ3id" title="Gain on forgiveness of debt"&gt;1,005,372&lt;/span&gt;. The gain on the forgiveness of the PPP Loan is a non-taxable event.&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; width: 10%; text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--LongTermDebt_iI_c20210831__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zjq9ifv5cRfl" title="Long-term debt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0765"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; width: 10%; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--LongTermDebt_iI_c20210228__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zY4dmUrx7rBb" title="Long-term debt"&gt;1,001,640&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&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 id="xdx_408_eus-gaap--LongTermDebt_iI_zy7uBVW1FrIi" style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Total 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 style="border-bottom: Black 2.5pt double; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0769"&gt;&#x2014;&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="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;1,001,640&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:ScheduleOfDebtTableTextBlock>
    <us-gaap:DebtInstrumentPeriodicPayment
      contextRef="From2020-03-012021-02-28_us-gaap_UnsecuredDebtMember"
      decimals="0"
      unitRef="USD">56370</us-gaap:DebtInstrumentPeriodicPayment>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="AsOf2021-02-28_us-gaap_UnsecuredDebtMember"
      decimals="INF"
      unitRef="Pure">0.01</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentTerm contextRef="From2020-03-012021-02-28_us-gaap_UnsecuredDebtMember">P2Y</us-gaap:DebtInstrumentTerm>
    <us-gaap:DebtInstrumentDecreaseForgiveness
      contextRef="From2021-03-012021-08-31_us-gaap_UnsecuredDebtMember"
      decimals="0"
      unitRef="USD">1005372</us-gaap:DebtInstrumentDecreaseForgiveness>
    <us-gaap:LongTermDebt
      contextRef="AsOf2021-02-28_us-gaap_UnsecuredDebtMember"
      decimals="0"
      unitRef="USD">1001640</us-gaap:LongTermDebt>
    <us-gaap:LongTermDebt contextRef="AsOf2021-02-28" decimals="0" unitRef="USD">1001640</us-gaap:LongTermDebt>
    <us-gaap:ShortTermDebtTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_807_eus-gaap--ShortTermDebtTextBlock_zhyv6Oslki9e" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;NOTE 9: REVOLVING LINE OF CREDIT&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;The Company has a $&lt;span id="xdx_90A_eus-gaap--LineOfCreditFacilityMaximumBorrowingCapacity_iI_c20210831__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_z71zDPXEpd66" title="Revolving line of credit"&gt;&lt;span id="xdx_906_eus-gaap--LineOfCreditFacilityMaximumBorrowingCapacity_iI_c20210228__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zw0m05o8fpYc" title="Revolving line of credit"&gt;1,500,000&lt;/span&gt;&lt;/span&gt; revolving line of credit at prime which was &lt;span id="xdx_908_eus-gaap--LineOfCreditFacilityInterestRateAtPeriodEnd_iI_dp_c20210831__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zq0zX8f4pzG4" title="Interest rate"&gt;&lt;span id="xdx_90B_eus-gaap--LineOfCreditFacilityInterestRateAtPeriodEnd_iI_dp_c20210228__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zHcdbY2eN1P3" title="Interest rate"&gt;3.25&lt;/span&gt;&lt;/span&gt;% at August
31, 2021 and February 28, 2021. &lt;span id="xdx_908_eus-gaap--LineOfCreditFacilityCollateral_c20210301__20210831__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zLJ9Yfq91RM7" title="Revolving credit line collateral"&gt;&lt;span id="xdx_900_eus-gaap--LineOfCreditFacilityCollateral_c20200301__20210228__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zD0vrtludiFf"&gt;The revolving credit line is collateralized by the Company&#x2019;s accounts receivable and inventory.&lt;/span&gt;&lt;/span&gt;
The revolving credit line is payable on demand and must be retired for a 30-day period, once annually. If the Company fails to perform
the 30-day annual pay down or if the bank elects to terminate the credit line, the bank may, at its option, convert the outstanding balance
to a 36-month term note with payments including interest in 36 equal installments.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;As of August 31, 2021, $&lt;span id="xdx_90A_ecustom--CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers_iI_c20210831__us-gaap--CreditFacilityAxis__us-gaap--LetterOfCreditMember_zQdZxkLghxlh" title="Credit line utilized to collateralize letter of credit issued to customers"&gt;618,000&lt;/span&gt; of the Company&#x2019;s credit line was being utilized to
collateralize letters of credit issued to customers that have remitted cash deposits to the Company on existing orders. The letters of
credit expire in 2022. As of August 31, 2021, there were no outstanding borrowings under the line of credit and the unused portion of
the credit line was $&lt;span id="xdx_904_eus-gaap--LineOfCreditFacilityCurrentBorrowingCapacity_iI_c20210831__us-gaap--CreditFacilityAxis__us-gaap--LetterOfCreditMember_zF84mn5ux716" title="Unused portion of credit line"&gt;882,000&lt;/span&gt; as of August 31, 2021.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

</us-gaap:ShortTermDebtTextBlock>
    <us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
      contextRef="AsOf2021-08-31_us-gaap_RevolvingCreditFacilityMember"
      decimals="0"
      unitRef="USD">1500000</us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity>
    <us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
      contextRef="AsOf2021-02-28_us-gaap_RevolvingCreditFacilityMember"
      decimals="0"
      unitRef="USD">1500000</us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity>
    <us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd
      contextRef="AsOf2021-08-31_us-gaap_RevolvingCreditFacilityMember"
      decimals="INF"
      unitRef="Pure">0.0325</us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd>
    <us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd
      contextRef="AsOf2021-02-28_us-gaap_RevolvingCreditFacilityMember"
      decimals="INF"
      unitRef="Pure">0.0325</us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd>
    <us-gaap:LineOfCreditFacilityCollateral contextRef="From2021-03-012021-08-31_us-gaap_RevolvingCreditFacilityMember">The revolving credit line is collateralized by the Company&#x2019;s accounts receivable and inventory.</us-gaap:LineOfCreditFacilityCollateral>
    <us-gaap:LineOfCreditFacilityCollateral contextRef="From2020-03-012021-02-28_us-gaap_RevolvingCreditFacilityMember">The revolving credit line is collateralized by the Company&#x2019;s accounts receivable and inventory.</us-gaap:LineOfCreditFacilityCollateral>
    <sotk:CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers
      contextRef="AsOf2021-08-31_us-gaap_LetterOfCreditMember"
      decimals="0"
      unitRef="USD">618000</sotk:CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers>
    <us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity
      contextRef="AsOf2021-08-31_us-gaap_LetterOfCreditMember"
      decimals="0"
      unitRef="USD">882000</us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity>
    <us-gaap:ConcentrationRiskDisclosureTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_802_eus-gaap--ConcentrationRiskDisclosureTextBlock_z9ah0w2oOXPl" style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;b&gt;NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_891_eus-gaap--SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_zoG2lxlQec94" style="font: 10pt Cambria,serif; margin: 0"&gt;Export sales to customers located outside the United States and Canada were approximately
as follows:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_8B3_z5S3y8Jsepb1" style="display: none"&gt;Customer Concentrations and Foreign Sales - Schedule of Customer Concentrations and Foreign Sales&lt;/span&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;Six&#160;Months&#160;Ended&lt;br/&gt; August 31,&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;Three&#160;Months&#160;Ended&lt;br/&gt; August 31,&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 44%; text-align: left"&gt;Asia Pacific (APAC) &lt;span id="xdx_915_esrt--AsiaPacificMember_zD77DvALNY49" style="display: none"&gt;Asia Pacific (APAC)&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 10%; text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210301__20210831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zJeBFRFnV425" title="Total sales"&gt;2,853,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 10%; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zfBtZJkw6hJe" title="Total sales"&gt;2,377,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 10%; text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zkpgKhRPT5J" title="Total sales"&gt;1,631,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 10%; text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zg7XZyKMtfq5" title="Total sales"&gt;455,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; 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="font: 10pt Cambria,serif; text-align: left"&gt;Europe, Middle East, Asia (EMEA) &lt;span id="xdx_91B_eus-gaap--EMEAMember_zt43EI7jHich" style="display: none"&gt;Europe, Middle East, Asia (EMEA)&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210301__20210831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_ziqGZ9FoJKB1" title="Total sales"&gt;1,436,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zdRrQzpzNktc" title="Total sales"&gt;1,198,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zz8kzkVelRz4" title="Total sales"&gt;593,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zctqmF5GVKDb" title="Total sales"&gt;767,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt"&gt;Latin America&lt;span id="xdx_918_esrt--LatinAmericaMember_zVIic5vHZ7m1" style="display: none"&gt;Latin America&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210301__20210831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zpNIavEh9tWj" title="Total sales"&gt;645,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zdMGBXTWZPR1" title="Total sales"&gt;423,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zzgrKcJMqE22" title="Total sales"&gt;293,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_909_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zGMHBg0KTWL6" title="Total sales"&gt;103,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt; 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: 10pt; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210301__20210831_zrEvnVwxopfe" title="Total sales"&gt;4,934,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831_zhlK0drBEWn8" title="Total sales"&gt;3,998,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831_zj2ZHt2jJz9i" title="Total sales"&gt;2,517,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831_zRpkwiwydYJb" title="Total sales"&gt;1,325,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;


&lt;p id="xdx_8A2_zkmIGqt6vti4" style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;During first half of fiscal 2022 and fiscal 2021, sales to foreign customers accounted
for approximately $&lt;span id="xdx_90A_eus-gaap--Revenues_c20210301__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zJrl5w8m0oFk" title="Sales revenue"&gt;4,934,000&lt;/span&gt; &lt;span style="font-size: 8pt"&gt;&#160;&lt;/span&gt;and $&lt;span id="xdx_90C_eus-gaap--Revenues_c20200301__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zKlXLsHwCAh2"&gt;3,998,000&lt;/span&gt;, or &lt;span id="xdx_905_ecustom--SalesRevenuePercent_dp_c20210301__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zjK6aaObDTPg" title="Sales revenue, percent"&gt;64&lt;/span&gt;% and &lt;span id="xdx_907_ecustom--SalesRevenuePercent_dp_c20200301__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zoHIbPhV8u9l" title="Sales revenue, percent"&gt;58&lt;/span&gt;% respectively, of total revenues.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;During second quarter of fiscal 2022 and fiscal 2021, sales to foreign customers accounted
for approximately $&lt;span id="xdx_909_eus-gaap--Revenues_c20210601__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zcWq6BnArM47" title="Sales revenue"&gt;2,517,000&lt;/span&gt; and $&lt;span id="xdx_900_eus-gaap--Revenues_c20200601__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_z5KEWTpGEbF6" title="Sales revenue"&gt;1,325,000&lt;/span&gt;, or &lt;span id="xdx_900_ecustom--SalesRevenuePercent_dp_c20210601__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zxX8nCQDcs8" title="Sales revenue, percent"&gt;62&lt;/span&gt;% and &lt;span id="xdx_900_ecustom--SalesRevenuePercent_dp_c20200601__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zN2CwgX9PSu4" title="Sales revenue, percent"&gt;38&lt;/span&gt;% respectively, of total revenues.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;The Company had two customers which accounted for &lt;span id="xdx_900_eus-gaap--ConcentrationRiskPercentage1_dp_c20210301__20210831__srt--MajorCustomersAxis__custom--TwoCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zPseSnqST7jf" title="Sales revenue, percent"&gt;26&lt;/span&gt;% of sales during the first half
of fiscal 2022. The Company had five customers which accounted for &lt;span id="xdx_902_eus-gaap--ConcentrationRiskPercentage1_dp_c20210601__20210831__srt--MajorCustomersAxis__custom--FiveCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zXKxeymqLM27" title="Sales revenue, percent"&gt;47&lt;/span&gt;% of sales during the second quarter of fiscal 2022. Two
customers accounted for &lt;span id="xdx_903_eus-gaap--ConcentrationRiskPercentage1_dp_c20210301__20210831__srt--MajorCustomersAxis__custom--TwoCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--AccountsReceivableMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zn9SNSgRtHWk" title="Outstanding accounts receivables, percent"&gt;55&lt;/span&gt;% of the outstanding accounts receivables at August 31, 2021.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;The Company had six customers which accounted for &lt;span id="xdx_903_eus-gaap--ConcentrationRiskPercentage1_dp_c20200301__20200831__srt--MajorCustomersAxis__custom--SixCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_z7N2Bd17VyPl" title="Sales revenue, percent"&gt;47&lt;/span&gt;% of sales during the first half of
fiscal 2021.The Company had six customers which accounted for &lt;span id="xdx_908_eus-gaap--ConcentrationRiskPercentage1_dp_c20200601__20200831__srt--MajorCustomersAxis__custom--SixCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zAlCf9Yel6g" title="Sales revenue, percent"&gt;54&lt;/span&gt;% of sales during the second quarter of fiscal 2021. Two customers accounted
for &lt;span id="xdx_90A_eus-gaap--ConcentrationRiskPercentage1_dp_c20200301__20210228__srt--MajorCustomersAxis__custom--TwoCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--AccountsReceivableMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zkSYTxSXmCS9" title="Outstanding accounts receivables, percent"&gt;64&lt;/span&gt;% of the outstanding accounts receivables at February 28, 2021&lt;span style="font-size: 8pt"&gt;&#160;&lt;/span&gt;.&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_91D_ecustom--ForeignCustomersMember_zlPA76K3Gyg7" style="display: none"&gt;Foreign Customers&lt;/span&gt;&lt;span id="xdx_918_eus-gaap--SalesRevenueNetMember_zzSu6J5GcNuj" style="display: none"&gt;Sales Revenue&lt;/span&gt;&lt;span id="xdx_916_eus-gaap--AccountsReceivableMember_zhTyRF0edpCf" style="display: none"&gt;Accounts Receivables&lt;/span&gt;&lt;span id="xdx_91F_ecustom--TwoCustomersMember_zxVrxfQo4Hm9" style="display: none"&gt;Two Customers&lt;/span&gt;&lt;span id="xdx_914_ecustom--FiveCustomersMember_z111w2cf0mcj" style="display: none"&gt;Five Customers&lt;/span&gt;&lt;span id="xdx_91F_ecustom--SixCustomersMember_z8i2u6vKsEC8" style="display: none"&gt;Six Customers&lt;/span&gt;&lt;/p&gt;

</us-gaap:ConcentrationRiskDisclosureTextBlock>
    <us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock contextRef="From2021-03-01to2021-08-31">&lt;p id="xdx_891_eus-gaap--SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_zoG2lxlQec94" style="font: 10pt Cambria,serif; margin: 0"&gt;Export sales to customers located outside the United States and Canada were approximately
as follows:&lt;/p&gt;

&lt;p style="font: 10pt Cambria,serif; margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 7pt Cambria,serif; margin: 0"&gt;&lt;span id="xdx_8B3_z5S3y8Jsepb1" style="display: none"&gt;Customer Concentrations and Foreign Sales - Schedule of Customer Concentrations and Foreign Sales&lt;/span&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;Six&#160;Months&#160;Ended&lt;br/&gt; August 31,&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;Three&#160;Months&#160;Ended&lt;br/&gt; August 31,&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; font: bold 9pt Cambria,serif; text-align: center"&gt;2020&lt;/td&gt;&lt;td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 44%; text-align: left"&gt;Asia Pacific (APAC) &lt;span id="xdx_915_esrt--AsiaPacificMember_zD77DvALNY49" style="display: none"&gt;Asia Pacific (APAC)&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 10%; text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210301__20210831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zJeBFRFnV425" title="Total sales"&gt;2,853,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 10%; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zfBtZJkw6hJe" title="Total sales"&gt;2,377,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 10%; text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zkpgKhRPT5J" title="Total sales"&gt;1,631,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; width: 10%; text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831__srt--StatementGeographicalAxis__srt--AsiaPacificMember_zg7XZyKMtfq5" title="Total sales"&gt;455,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; 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="font: 10pt Cambria,serif; text-align: left"&gt;Europe, Middle East, Asia (EMEA) &lt;span id="xdx_91B_eus-gaap--EMEAMember_zt43EI7jHich" style="display: none"&gt;Europe, Middle East, Asia (EMEA)&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210301__20210831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_ziqGZ9FoJKB1" title="Total sales"&gt;1,436,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zdRrQzpzNktc" title="Total sales"&gt;1,198,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zz8kzkVelRz4" title="Total sales"&gt;593,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zctqmF5GVKDb" title="Total sales"&gt;767,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(230,239,255)"&gt;
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    &lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zdMGBXTWZPR1" title="Total sales"&gt;423,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zzgrKcJMqE22" title="Total sales"&gt;293,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_909_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831__srt--StatementGeographicalAxis__srt--LatinAmericaMember_zGMHBg0KTWL6" title="Total sales"&gt;103,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 1pt; 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: 10pt; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
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    &lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831_zhlK0drBEWn8" title="Total sales"&gt;3,998,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831_zj2ZHt2jJz9i" title="Total sales"&gt;2,517,000&lt;/span&gt;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
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<title></title>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457560099976">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Cover - shares<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Oct. 12, 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_dei_CoverAbstract', window );"><strong>Cover [Abstract]</strong></a></td>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">10-Q<span></span>
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<td class="text">&#160;<span></span>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentQuarterlyReport', window );">Document Quarterly Report</a></td>
<td class="text">true<span></span>
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<td class="text">&#160;<span></span>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentTransitionReport', window );">Document Transition Report</a></td>
<td class="text">false<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Aug. 31,  2021<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_dei_DocumentFiscalPeriodFocus', window );">Document Fiscal Period Focus</a></td>
<td class="text">Q2<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentFiscalYearFocus', window );">Document Fiscal Year Focus</a></td>
<td class="text">2022<span></span>
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<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CurrentFiscalYearEndDate', window );">Current Fiscal Year End Date</a></td>
<td class="text">--02-28<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">000-16035<span></span>
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<td class="text">&#160;<span></span>
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</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_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">Sono Tek Corp<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000806172<span></span>
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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_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">14-1568099<span></span>
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<td class="text">&#160;<span></span>
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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_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">NY<span></span>
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<td class="text">&#160;<span></span>
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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_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">2012 Rt. 9W<span></span>
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<td class="text">&#160;<span></span>
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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_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Milton<span></span>
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<td class="text">&#160;<span></span>
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</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_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">NY<span></span>
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<td class="text">&#160;<span></span>
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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_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">12547<span></span>
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<td class="text">&#160;<span></span>
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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_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">(845)<span></span>
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<td class="text">&#160;<span></span>
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</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_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">795-2020<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_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock, $0.01 par value per share<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_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">SOTK<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_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="ro">
<td class="pl " 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="re">
<td class="pl " 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="ro">
<td class="pl " 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">Non-accelerated Filer<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_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="ro">
<td class="pl " 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="re">
<td class="pl " 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="ro">
<td class="pl " 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">15,543,133<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_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCurrentReportingStatus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCurrentReportingStatus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFilerCategory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFilerCategory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:filerCategoryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityInteractiveDataCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-T<br> -Number 232<br> -Section 405<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityInteractiveDataCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityShellCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityShellCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntitySmallBusiness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicates that the company is a Smaller Reporting Company (SRC).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntitySmallBusiness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
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<DESCRIPTION>IDEA: XBRL DOCUMENT
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<head>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457560984744">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets - USD ($)<br></strong></div></th>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Feb. 28, 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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">$ 6,143,106<span></span>
</td>
<td class="nump">$ 4,084,078<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_MarketableSecuritiesCurrent', window );">Marketable securities</a></td>
<td class="nump">3,554,124<span></span>
</td>
<td class="nump">4,563,470<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsReceivableNetCurrent', window );">Accounts receivable (less allowance of $56,123)</a></td>
<td class="nump">1,482,334<span></span>
</td>
<td class="nump">1,757,802<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNet', window );">Inventories, net</a></td>
<td class="nump">2,923,855<span></span>
</td>
<td class="nump">2,611,106<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PrepaidExpenseAndOtherAssetsCurrent', window );">Prepaid expenses and other current assets</a></td>
<td class="nump">124,214<span></span>
</td>
<td class="nump">151,316<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">14,227,633<span></span>
</td>
<td class="nump">13,167,772<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_Land', window );">Land</a></td>
<td class="nump">250,000<span></span>
</td>
<td class="nump">250,000<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_sotk_BuildingsNet', window );">Buildings, net</a></td>
<td class="nump">1,525,958<span></span>
</td>
<td class="nump">1,575,135<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_sotk_EquipmentFurnishingsLeaseholdImprovementsNet', window );">Equipment, furnishings and building improvements, net</a></td>
<td class="nump">1,057,084<span></span>
</td>
<td class="nump">1,075,190<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_IntangibleAssetsNetExcludingGoodwill', window );">Intangible assets, net</a></td>
<td class="nump">85,736<span></span>
</td>
<td class="nump">95,456<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_DeferredIncomeTaxAssetsNet', window );">Deferred tax asset</a></td>
<td class="nump">236,120<span></span>
</td>
<td class="nump">259,838<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">TOTAL ASSETS</a></td>
<td class="nump">17,382,531<span></span>
</td>
<td class="nump">16,423,391<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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="nump">1,080,255<span></span>
</td>
<td class="nump">1,294,483<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_AccruedLiabilitiesCurrent', window );">Accrued expenses</a></td>
<td class="nump">1,398,318<span></span>
</td>
<td class="nump">1,750,916<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_ContractWithCustomerLiabilityCurrent', window );">Customer deposits</a></td>
<td class="nump">1,916,784<span></span>
</td>
<td class="nump">1,166,541<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_AccruedIncomeTaxesCurrent', window );">Income taxes payable</a></td>
<td class="nump">202,188<span></span>
</td>
<td class="nump">53,567<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">4,597,545<span></span>
</td>
<td class="nump">4,265,507<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredIncomeTaxLiabilitiesNet', window );">Deferred tax liability</a></td>
<td class="nump">183,011<span></span>
</td>
<td class="nump">205,562<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtNoncurrent', window );">Long term debt, less current maturities</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">1,001,640<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Liabilities', window );">Total liabilities</a></td>
<td class="nump">4,780,556<span></span>
</td>
<td class="nump">5,472,709<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_StockholdersEquityAbstract', window );"><strong>Stockholders&#8217; Equity</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockValue', window );">Common stock, $.01 par value; 25,000,000 shares authorized, 15,531,285 and 15,452,656 shares issued and outstanding, respectively</a></td>
<td class="nump">155,313<span></span>
</td>
<td class="nump">154,527<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapital', window );">Additional paid-in capital</a></td>
<td class="nump">9,104,925<span></span>
</td>
<td class="nump">9,064,994<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated earnings</a></td>
<td class="nump">3,341,737<span></span>
</td>
<td class="nump">1,731,161<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Total stockholders&#8217; equity</a></td>
<td class="nump">12,601,975<span></span>
</td>
<td class="nump">10,950,682<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquity', window );">TOTAL LIABILITIES AND STOCKHOLDERS&#8217; EQUITY</a></td>
<td class="nump">$ 17,382,531<span></span>
</td>
<td class="nump">$ 16,423,391<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_sotk_BuildingsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">sotk_BuildingsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>sotk_</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_sotk_EquipmentFurnishingsLeaseholdImprovementsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">sotk_EquipmentFurnishingsLeaseholdImprovementsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>sotk_</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 http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsReceivableNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124259787&amp;loc=d3e4428-111522<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124259787&amp;loc=d3e4531-111522<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsReceivableNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedIncomeTaxesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax 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 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(15)(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(15)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<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(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<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_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 http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr>
<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>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>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>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Data Type:</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_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>
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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>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all 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>
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210.13-02(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (bb)<br> -URI http://asc.fasb.org/extlink&amp;oid=123419778&amp;loc=d3e5710-111685<br><br>Reference 18: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iv))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 19: 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 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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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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<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_CommonStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<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>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130531-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130532-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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 http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e31931-109318<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e31917-109318<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_DeferredIncomeTaxLiabilitiesNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e31931-109318<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e31917-109318<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredIncomeTaxLiabilitiesNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IntangibleAssetsNetExcludingGoodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph ((a)(1),(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6388964&amp;loc=d3e16212-109274<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IntangibleAssetsNetExcludingGoodwill</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_Land">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 depletion of real estate held for productive use, excluding land held for sale.</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 210.5-02.13)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6812-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr>
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<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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>
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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>
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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 of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.</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_LiabilitiesAndStockholdersEquity</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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<td><strong> Period Type:</strong></td>
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<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>
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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_LiabilitiesCurrent</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</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 );">- 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 after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtNoncurrent</td>
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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 investment in marketable security, 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(7))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PrepaidExpenseAndOtherAssetsCurrent</td>
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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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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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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_RetainedEarningsAccumulatedDeficit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cumulative amount of the reporting entity's undistributed earnings or deficit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (g)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RetainedEarningsAccumulatedDeficit</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=122038336&amp;loc=d3e74512-122707<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</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_StockholdersEquityAbstract</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457649329432">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)<br></strong></div></th>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Feb. 28, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Statement of Financial Position [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent', window );">Allowance for doubtful accounts receivable</a></td>
<td class="nump">$ 56,123<span></span>
</td>
<td class="nump">$ 56,123<span></span>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockParOrStatedValuePerShare', window );">Common stock, par value</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.01<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesAuthorized', window );">Common stock shares authorized</a></td>
<td class="nump">25,000,000<span></span>
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<td class="nump">25,000,000<span></span>
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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_CommonStockSharesIssued', window );">Common stock, shares issued</a></td>
<td class="nump">15,531,285<span></span>
</td>
<td class="nump">15,452,656<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding</a></td>
<td class="nump">15,531,285<span></span>
</td>
<td class="nump">15,452,656<span></span>
</td>
</tr>
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<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_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 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(4)<br> -URI http://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 310<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123577603&amp;loc=d3e5074-111524<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124255206&amp;loc=SL82895884-210446<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</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 http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</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 http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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>
</div>
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</html>
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<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;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457643744568">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Income - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Income Statement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Net Sales</a></td>
<td class="nump">$ 4,070,467<span></span>
</td>
<td class="nump">$ 3,480,641<span></span>
</td>
<td class="nump">$ 7,714,935<span></span>
</td>
<td class="nump">$ 6,909,185<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfRevenue', window );">Cost of Goods Sold</a></td>
<td class="nump">1,996,468<span></span>
</td>
<td class="nump">1,859,675<span></span>
</td>
<td class="nump">3,816,771<span></span>
</td>
<td class="nump">3,727,486<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross Profit</a></td>
<td class="nump">2,073,999<span></span>
</td>
<td class="nump">1,620,966<span></span>
</td>
<td class="nump">3,898,164<span></span>
</td>
<td class="nump">3,181,699<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_OperatingExpensesAbstract', window );"><strong>Operating Expenses</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and product development costs</a></td>
<td class="nump">412,397<span></span>
</td>
<td class="nump">423,516<span></span>
</td>
<td class="nump">826,213<span></span>
</td>
<td class="nump">834,940<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_SellingAndMarketingExpense', window );">Marketing and selling expenses</a></td>
<td class="nump">739,603<span></span>
</td>
<td class="nump">682,270<span></span>
</td>
<td class="nump">1,504,245<span></span>
</td>
<td class="nump">1,388,987<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_GeneralAndAdministrativeExpense', window );">General and administrative costs</a></td>
<td class="nump">473,423<span></span>
</td>
<td class="nump">313,852<span></span>
</td>
<td class="nump">776,222<span></span>
</td>
<td class="nump">572,254<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingExpenses', window );">Total Operating Expenses</a></td>
<td class="nump">1,625,423<span></span>
</td>
<td class="nump">1,419,638<span></span>
</td>
<td class="nump">3,106,680<span></span>
</td>
<td class="nump">2,796,181<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Operating Income</a></td>
<td class="nump">448,576<span></span>
</td>
<td class="nump">201,328<span></span>
</td>
<td class="nump">791,484<span></span>
</td>
<td class="nump">385,518<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_InterestExpense', window );">Interest Expense</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(9,287)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(17,704)<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_InvestmentIncomeInterest', window );">Interest and Dividend Income</a></td>
<td class="nump">7,640<span></span>
</td>
<td class="nump">2,837<span></span>
</td>
<td class="nump">11,000<span></span>
</td>
<td class="nump">25,483<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_NonoperatingIncomeExpense', window );">Other Income</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">8,084<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">19,519<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_sotk_GainOnPayrollProtectionProgramLoanForgiveness', window );">Paycheck Protection Program Loan Forgiveness</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">1,005,372<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic', window );">Income&#160;Before Income Taxes</a></td>
<td class="nump">456,216<span></span>
</td>
<td class="nump">202,962<span></span>
</td>
<td class="nump">1,807,856<span></span>
</td>
<td class="nump">412,816<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income Tax Expense</a></td>
<td class="nump">112,392<span></span>
</td>
<td class="nump">25,199<span></span>
</td>
<td class="nump">197,280<span></span>
</td>
<td class="nump">67,125<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net Income</a></td>
<td class="nump">$ 343,824<span></span>
</td>
<td class="nump">$ 177,763<span></span>
</td>
<td class="nump">$ 1,610,576<span></span>
</td>
<td class="nump">$ 345,691<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic Earnings&#160;Per Share</a></td>
<td class="nump">$ 0.02<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.10<span></span>
</td>
<td class="nump">$ 0.02<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_EarningsPerShareDiluted', window );">Diluted Earnings&#160;Per Share</a></td>
<td class="nump">$ 0.02<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.10<span></span>
</td>
<td class="nump">$ 0.02<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Weighted Average Shares - Basic</a></td>
<td class="nump">15,507,484<span></span>
</td>
<td class="nump">15,424,126<span></span>
</td>
<td class="nump">15,500,952<span></span>
</td>
<td class="nump">15,410,952<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Weighted Average Shares - Diluted</a></td>
<td class="nump">15,602,359<span></span>
</td>
<td class="nump">15,533,010<span></span>
</td>
<td class="nump">15,613,930<span></span>
</td>
<td class="nump">15,530,910<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_sotk_GainOnPayrollProtectionProgramLoanForgiveness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">sotk_GainOnPayrollProtectionProgramLoanForgiveness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>sotk_</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_CostOfRevenue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate cost of goods produced and sold and services rendered during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iv))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(B))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 13: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iv))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostOfRevenue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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 http://asc.fasb.org/extlink&amp;oid=123482062&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 http://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 http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 4: 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10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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 http://asc.fasb.org/extlink&amp;oid=125512782&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 http://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 http://asc.fasb.org/extlink&amp;oid=125512782&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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://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 http://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 http://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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://asc.fasb.org/extlink&amp;oid=123482062&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 http://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 http://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 http://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 http://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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://asc.fasb.org/extlink&amp;oid=123482062&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 http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_GeneralAndAdministrativeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.4)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GeneralAndAdministrativeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GrossProfit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8924-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: 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-Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 13: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iv))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 18: 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 210.5-03.1,2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<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> -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_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>
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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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 earnings or loss from continuing operations before income taxes that is attributable to domestic 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 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h)(1))<br> -URI http://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 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.Fact.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic</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>
<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_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>
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<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 http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32672-109319<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (h)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22663-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123586238&amp;loc=d3e38679-109324<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(9))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the cost of borrowed funds accounted for as interest expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6450988&amp;loc=d3e26243-108391<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28555-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (210.5-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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</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_InvestmentIncomeInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentIncomeInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.</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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<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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<tr>
<td><strong> Balance 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>The net result for the period of deducting operating expenses from operating revenues.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<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>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 912<br> -SubTopic 730<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6472174&amp;loc=d3e58812-109433<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 985<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6501960&amp;loc=d3e128462-111756<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 730<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6420194&amp;loc=d3e21568-108373<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ResearchAndDevelopmentExpense</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Revenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 3: 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 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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_Revenues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SellingAndMarketingExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 amount of expenses directly related to the marketing or selling of products or services.</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_SellingAndMarketingExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1505-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1448-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457553854136">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)<br></strong></div></th>
<th class="th"><div>Common Stock Par Value $.01</div></th>
<th class="th"><div>Additional Paid-In Capital</div></th>
<th class="th"><div>Accumulated Earnings</div></th>
<th class="th"><div>Total</div></th>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance, value at Feb. 29, 2020</a></td>
<td class="nump">$ 153,482<span></span>
</td>
<td class="nump">$ 9,018,406<span></span>
</td>
<td class="nump">$ 610,519<span></span>
</td>
<td class="nump">$ 9,782,407<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Beginning Balance at Feb. 29, 2020</a></td>
<td class="nump">15,348,180<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_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock based compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">8,097<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">8,097<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_StockIssuedDuringPeriodValueStockOptionsExercised', window );">Cashless exercise of stock options</a></td>
<td class="nump">$ 748<span></span>
</td>
<td class="num">(748)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period</a></td>
<td class="nump">74,805<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_NetIncomeLoss', window );">Net Income</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">167,928<span></span>
</td>
<td class="nump">167,928<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance, value at May. 31, 2020</a></td>
<td class="nump">$ 154,230<span></span>
</td>
<td class="nump">9,025,755<span></span>
</td>
<td class="nump">778,447<span></span>
</td>
<td class="nump">9,958,432<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Ending Balance at May. 31, 2020</a></td>
<td class="nump">15,422,985<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance, value at Feb. 29, 2020</a></td>
<td class="nump">$ 153,482<span></span>
</td>
<td class="nump">9,018,406<span></span>
</td>
<td class="nump">610,519<span></span>
</td>
<td class="nump">9,782,407<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Beginning Balance at Feb. 29, 2020</a></td>
<td class="nump">15,348,180<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_NetIncomeLoss', window );">Net Income</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="nump">345,691<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance, value at Aug. 31, 2020</a></td>
<td class="nump">$ 154,360<span></span>
</td>
<td class="nump">9,033,531<span></span>
</td>
<td class="nump">956,210<span></span>
</td>
<td class="nump">10,144,101<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Ending Balance at Aug. 31, 2020</a></td>
<td class="nump">15,435,935<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance, value at May. 31, 2020</a></td>
<td class="nump">$ 154,230<span></span>
</td>
<td class="nump">9,025,755<span></span>
</td>
<td class="nump">778,447<span></span>
</td>
<td class="nump">9,958,432<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Beginning Balance at May. 31, 2020</a></td>
<td class="nump">15,422,985<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_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock based compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">7,906<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">7,906<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_StockIssuedDuringPeriodValueStockOptionsExercised', window );">Cashless exercise of stock options</a></td>
<td class="nump">$ 130<span></span>
</td>
<td class="num">(130)<span></span>
</td>
<td class="text">&#160;<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_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period</a></td>
<td class="nump">12,950<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_NetIncomeLoss', window );">Net Income</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">177,763<span></span>
</td>
<td class="nump">177,763<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance, value at Aug. 31, 2020</a></td>
<td class="nump">$ 154,360<span></span>
</td>
<td class="nump">9,033,531<span></span>
</td>
<td class="nump">956,210<span></span>
</td>
<td class="nump">10,144,101<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Ending Balance at Aug. 31, 2020</a></td>
<td class="nump">15,435,935<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance, value at Feb. 28, 2021</a></td>
<td class="nump">$ 154,527<span></span>
</td>
<td class="nump">9,064,994<span></span>
</td>
<td class="nump">1,731,161<span></span>
</td>
<td class="nump">10,950,682<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Beginning Balance at Feb. 28, 2021</a></td>
<td class="nump">15,452,656<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_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock based compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">21,637<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">21,637<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_StockIssuedDuringPeriodValueStockOptionsExercised', window );">Cashless exercise of stock options</a></td>
<td class="nump">$ 499<span></span>
</td>
<td class="num">(499)<span></span>
</td>
<td class="text">&#160;<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_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period</a></td>
<td class="nump">49,901<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_NetIncomeLoss', window );">Net Income</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,266,752<span></span>
</td>
<td class="nump">1,266,752<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance, value at May. 31, 2021</a></td>
<td class="nump">$ 155,026<span></span>
</td>
<td class="nump">9,086,132<span></span>
</td>
<td class="nump">2,997,913<span></span>
</td>
<td class="nump">12,239,071<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Ending Balance at May. 31, 2021</a></td>
<td class="nump">15,502,557<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance, value at Feb. 28, 2021</a></td>
<td class="nump">$ 154,527<span></span>
</td>
<td class="nump">9,064,994<span></span>
</td>
<td class="nump">1,731,161<span></span>
</td>
<td class="nump">10,950,682<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Beginning Balance at Feb. 28, 2021</a></td>
<td class="nump">15,452,656<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_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period</a></td>
<td class="nump">78,629<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_NetIncomeLoss', window );">Net Income</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="nump">1,610,576<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance, value at Aug. 31, 2021</a></td>
<td class="nump">$ 155,313<span></span>
</td>
<td class="nump">9,104,925<span></span>
</td>
<td class="nump">3,341,737<span></span>
</td>
<td class="nump">12,601,975<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Ending Balance at Aug. 31, 2021</a></td>
<td class="nump">15,531,285<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance, value at May. 31, 2021</a></td>
<td class="nump">$ 155,026<span></span>
</td>
<td class="nump">9,086,132<span></span>
</td>
<td class="nump">2,997,913<span></span>
</td>
<td class="nump">12,239,071<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Beginning Balance at May. 31, 2021</a></td>
<td class="nump">15,502,557<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_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock based compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">19,080<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">19,080<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_StockIssuedDuringPeriodValueStockOptionsExercised', window );">Cashless exercise of stock options</a></td>
<td class="nump">$ 287<span></span>
</td>
<td class="num">(287)<span></span>
</td>
<td class="text">&#160;<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_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period</a></td>
<td class="nump">28,728<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_NetIncomeLoss', window );">Net Income</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">343,824<span></span>
</td>
<td class="nump">343,824<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance, value at Aug. 31, 2021</a></td>
<td class="nump">$ 155,313<span></span>
</td>
<td class="nump">$ 9,104,925<span></span>
</td>
<td class="nump">$ 3,341,737<span></span>
</td>
<td class="nump">$ 12,601,975<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Shares, Outstanding, Ending Balance at Aug. 31, 2021</a></td>
<td class="nump">15,531,285<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 http://asc.fasb.org/extlink&amp;oid=122142933&amp;loc=d3e11149-113907<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 13<br> -URI http://asc.fasb.org/extlink&amp;oid=122142933&amp;loc=d3e11178-113907<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123468992&amp;loc=d3e4534-113899<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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>
</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_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>
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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_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_StockIssuedDuringPeriodValueStockOptionsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 as a result of the exercise of stock options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29-31)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
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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_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
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<DOCUMENT>
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<SEQUENCE>18
<FILENAME>R6.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457643789768">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>CASH FLOWS FROM OPERATING ACTIVITIES:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net Income</a></td>
<td class="nump">$ 1,610,576<span></span>
</td>
<td class="nump">$ 345,691<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile net income to net cash provided by (used in) operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DepreciationDepletionAndAmortization', window );">Depreciation and amortization</a></td>
<td class="nump">224,233<span></span>
</td>
<td class="nump">214,280<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_StockOptionPlanExpense', window );">Stock based compensation expense</a></td>
<td class="nump">40,717<span></span>
</td>
<td class="nump">16,003<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryLIFOReservePeriodCharge', window );">Inventory reserve</a></td>
<td class="num">(24,919)<span></span>
</td>
<td class="nump">36,000<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_DebtInstrumentDecreaseForgiveness', window );">Paycheck Protection Program Loan Forgiveness</a></td>
<td class="num">(1,005,372)<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_DeferredIncomeTaxExpenseBenefit', window );">Deferred tax expense</a></td>
<td class="nump">1,167<span></span>
</td>
<td class="text"> <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_IncreaseDecreaseInOperatingAssetsAbstract', window );"><strong>(Decrease) Increase in:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsReceivable', window );">Accounts receivable</a></td>
<td class="nump">275,468<span></span>
</td>
<td class="num">(418,947)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInInventories', window );">Inventories</a></td>
<td class="num">(287,830)<span></span>
</td>
<td class="num">(116,157)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets', window );">Prepaid expenses and other current assets</a></td>
<td class="nump">27,101<span></span>
</td>
<td class="nump">58,863<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities', window );">Accounts payable and accrued expenses</a></td>
<td class="num">(563,094)<span></span>
</td>
<td class="num">(250,099)<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_IncreaseDecreaseInContractWithCustomerLiability', window );">Customer deposits</a></td>
<td class="nump">750,243<span></span>
</td>
<td class="num">(660,588)<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_IncreaseDecreaseInAccruedTaxesPayable', window );">Income taxes payable</a></td>
<td class="nump">148,622<span></span>
</td>
<td class="num">(6,878)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivities', window );">Net Cash Provided by (Used in) Operating Activities</a></td>
<td class="nump">1,196,912<span></span>
</td>
<td class="num">(781,832)<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_NetCashProvidedByUsedInInvestingActivitiesAbstract', window );"><strong>CASH FLOWS FROM INVESTING ACTIVITIES:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Purchase of equipment, furnishings and leasehold improvements</a></td>
<td class="num">(147,230)<span></span>
</td>
<td class="num">(290,347)<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_sotk_ProceedsFromCapitalExpenditureGrant', window );">Capital expenditure grant proceeds</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">100,000<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_ProceedsFromSaleAndMaturityOfMarketableSecurities', window );">Sale (purchase) of marketable securities</a></td>
<td class="nump">1,009,346<span></span>
</td>
<td class="nump">366,639<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivities', window );">Net Cash Provided by Investing Activities</a></td>
<td class="nump">862,116<span></span>
</td>
<td class="nump">176,292<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="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_ProceedsFromNotesPayable', window );">Proceeds from note payable</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">1,001,640<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_RepaymentsOfLongTermDebt', window );">Repayment of long term debt</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(84,040)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivities', window );">Net Cash Provided by Financing Activities</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">917,600<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect', window );">NET INCREASE IN CASH AND CASH EQUIVALENTS</a></td>
<td class="nump">2,059,028<span></span>
</td>
<td class="nump">312,060<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_CashAndCashEquivalentsAbstract', window );"><strong>CASH AND CASH EQUIVALENTS</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Beginning of period</a></td>
<td class="nump">4,084,078<span></span>
</td>
<td class="nump">3,659,551<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_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">End of period</a></td>
<td class="nump">6,143,106<span></span>
</td>
<td class="nump">3,971,611<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_SupplementalCashFlowInformationAbstract', window );"><strong>SUPPLEMENTAL CASH FLOW DISCLOSURE:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestPaidNet', window );">Interest paid</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">13,972<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_IncomeTaxesPaidNet', window );">Income Taxes Paid</a></td>
<td class="nump">$ 47,488<span></span>
</td>
<td class="nump">$ 74,004<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_sotk_ProceedsFromCapitalExpenditureGrant">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">sotk_ProceedsFromCapitalExpenditureGrant</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>sotk_</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_CashAndCashEquivalentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_CashAndCashEquivalentsAbstract</td>
</tr>
<tr>
<td style="padding-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_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123444420&amp;loc=d3e33268-110906<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentDecreaseForgiveness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Decrease for amounts of indebtedness forgiven by the holder of the debt instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(f))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentDecreaseForgiveness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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 http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.Fact.1)<br> -URI http://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 http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.Fact.2)<br> -URI http://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 http://asc.fasb.org/extlink&amp;oid=123570139&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 http://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 http://asc.fasb.org/extlink&amp;oid=123359005&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 http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_IncomeTaxesPaidNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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, net of any cash received during the current period as refunds for the overpayment of taxes.</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 http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=d3e4297-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxesPaidNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsReceivable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsReceivable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccruedTaxesPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 of all taxes owed but not paid, including income, property and other taxes.</p></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 http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccruedTaxesPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_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 http://asc.fasb.org/extlink&amp;oid=123570139&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 http://asc.fasb.org/extlink&amp;oid=123371682&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_IncreaseDecreaseInInventories">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInInventories</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_IncreaseDecreaseInOperatingAssetsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in prepaid expenses, and assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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 http://asc.fasb.org/extlink&amp;oid=123431023&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 http://asc.fasb.org/extlink&amp;oid=123570139&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 http://asc.fasb.org/extlink&amp;oid=123570139&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>
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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>The change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods, which change has been reflected in the statement of income during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 5.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=27011343&amp;loc=d3e99989-122729<br></p></div>
<a href="javascript:void(0);" 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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<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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</div></td></tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivities</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
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<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 );">- 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>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</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>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivities</td>
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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>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td>na</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 of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3536-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>xbrli:stringItemType</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>
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<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 );">- 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>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from a borrowing supported by a written promise to pay an obligation.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities  (held-to-maturity or available-for-sale) during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<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 http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457558443336">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 1: BUSINESS DESCRIPTION<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 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_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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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_BusinessDescriptionAndBasisOfPresentationTextBlock', window );">NOTE 1: BUSINESS DESCRIPTION</a></td>
<td class="text"><p id="xdx_80D_eus-gaap--BusinessDescriptionAndBasisOfPresentationTextBlock_zqzvYDLKHhLi" style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.5in"><b>NOTE 1: BUSINESS DESCRIPTION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Sono-Tek Corporation (the &#8220;Company&#8221;, &#8220;Sono-Tek&#8221;, &#8220;We&#8221;
or &#8220;Our&#8221;) was incorporated in New York on March 21, 1975. We are the world leader in the design and manufacture of ultrasonic
coating systems for applying precise, thin film coatings to add functional properties, protect or strengthen surfaces on parts and components
for the microelectronics/electronics, alternative energy, medical, industrial and emerging research &amp; development/other markets. We
design and manufacture custom-engineered ultrasonic coating systems incorporating our patented technology, in combination with strong
applications engineering knowledge, to assist our customers in achieving their desired coating solutions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The accompanying unaudited condensed consolidated financial statements have been prepared
in accordance with accounting principles generally accepted in the United States (&#8220;GAAP&#8221;) for interim financial information
with the instructions for Form 10-Q and Article 8 of Regulation S-X. Accordingly, the unaudited condensed consolidated financial statements
do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of the Company&#8217;s
management, all adjustments considered necessary for a fair presentation (consisting of normal recurring adjustments) have been included.
The results for the interim periods are not necessarily indicative of what the results will be for the fiscal year. The accompanying unaudited
condensed consolidated financial statements should be read in conjunction with the audited Consolidated Financial Statements as of and
for the fiscal year ended February 28, 2021 (&#8220;fiscal year 2021&#8221;) contained in the Company&#8217;s 2021 Annual Report on Form
10-K filed with the SEC on May 28, 2021. The Company&#8217;s current fiscal year ends on February 28, 2022 (&#8220;fiscal 2022&#8221;).</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457559963544">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 2: SIGNIFICANT ACCOUNTING POLICIES<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 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_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SignificantAccountingPoliciesTextBlock', window );">NOTE 2: SIGNIFICANT ACCOUNTING POLICIES</a></td>
<td class="text"><p id="xdx_80F_eus-gaap--SignificantAccountingPoliciesTextBlock_zuGuIUxB95kh" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 2: SIGNIFICANT ACCOUNTING POLICIES</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_849_eus-gaap--ReceivablesPolicyTextBlock_zo2TpfuLlq9k" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86E_zUUitfUKvdD9">Accounts Receivable, net</span> - </i></b>In the normal course of business, the Company
extends credit to customers. Accounts receivable, less the allowance for doubtful accounts, reflect the net realizable value of receivables
and approximate fair value. The Company records a bad debt expense/allowance based on management&#8217;s estimate of uncollectible accounts.
All outstanding accounts receivable accounts are reviewed for collectability on an individual basis.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_84F_eus-gaap--CashAndCashEquivalentsPolicyTextBlock_zEer2syZlCb7" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86F_z5aNWy93qxd4">Cash and Cash Equivalents</span></i></b><i> - </i>Cash and cash equivalents consist of money
market mutual funds, short term commercial paper and short-term certificates of deposit with original maturities of 90 days or less.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_84A_eus-gaap--ConsolidationPolicyTextBlock_zX18u4il7nbi" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86C_z5wdjHOB7VG8">Consolidation</span></i></b> - The accompanying unaudited condensed consolidated financial
statements of the Company include the accounts of the Company and its wholly owned subsidiary, Sono-Tek Industrial Park, LLC (&#8220;SIP&#8221;)
in conformity with generally accepted accounting principles in the United States (&#8220;GAAP&#8221;). SIP operates as a real estate holding
company for the Company&#8217;s real estate operations. All intercompany accounts and transactions have been eliminated in consolidation.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_84E_eus-gaap--EarningsPerSharePolicyTextBlock_ziXywvQWCLhd" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_860_zwzhOFxb7lJb">Earnings Per Share</span></i></b><i> - </i>Basic earnings per share (&#8220;EPS&#8221;)
is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the
potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock
under the treasury stock method.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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Codification (&#8220;ASC&#8221;) 820,&#160;<i>Fair Value Measurement&#160;</i>(&#8220;ASC 820&#8221;), which establishes a framework for
measuring fair value and clarifies the definition of fair value within that framework. ASC 820 defines fair value as an exit price, which
is the price that would be received for an asset or paid to transfer a liability in the Company&#8217;s principal or most advantageous
market in an orderly transaction between market participants on the measurement date. The fair value hierarchy established in ASC 820
generally requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair
value. Observable inputs reflect the assumptions that market participants would use in pricing the asset or liability and are developed
based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the entity&#8217;s own assumptions
based on market data and the entity&#8217;s judgments about the assumptions that market participants would use in pricing the asset or
liability and are to be developed based on the best information available in the circumstances.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>




<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The carrying amounts of financial instruments reported in the accompanying unaudited condensed
consolidated financial statements for current assets and current liabilities approximate the fair value because of the immediate or short-term
maturities of the financial instruments.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The valuation hierarchy is composed of three levels. The classification within the valuation
hierarchy is based on the lowest level of input that is significant to the fair value measurement. The levels within the valuation hierarchy
are described below:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Level 1 &#8212; Assets and liabilities with unadjusted, quoted prices listed on active
market exchanges. Inputs to the fair value measurement are observable inputs, such as quoted prices in active markets for identical assets
or liabilities.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Level 2 &#8212; Inputs to the fair value measurement are determined using prices for recently
traded assets and liabilities with similar underlying terms, as well as direct or indirect observable inputs, such as interest rates and
yield curves that are observable at commonly quoted intervals.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Level 3 &#8212; Inputs to the fair value measurement are unobservable inputs, such as estimates,
assumptions, and valuation techniques when little or no market data exists for the assets or liabilities.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white">&#160;</p>

<p id="xdx_893_eus-gaap--FairValueAssetsMeasuredOnRecurringBasisTextBlock_zXoeqDjqdJka" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white">The fair values of financial assets of the
Company were determined using the following categories at August 31, 2021 and February 28, 2021, respectively:</p>

<p style="font: 10pt Cambria,serif; margin: 0; background-color: white">&#160;</p>

<p style="font: 11pt Cambria,serif; margin: 0"><span id="xdx_8BB_z8hw9JjeSePd" style="display: none">Significant Accounting Policies - Fair values of financial assets of the Company</span></p>

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    <td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"><span id="xdx_907_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zsvSvBEvzUMd"><span style="-sec-ix-hidden: xdx2ixbrl0474">&#8212;</span></span></td><td style="width: 1%; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="width: 2%; padding-bottom: 2.5pt">&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
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    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right"><span id="xdx_901_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_z9tVB9bIV6I">4,261,927</span></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="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right"><span id="xdx_902_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zSAUbPCJ9awf"><span style="-sec-ix-hidden: xdx2ixbrl0478">&#8212;</span></span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
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<p id="xdx_8AA_zBvlSBQaWOv4" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; background-color: white">Marketable Securities include mutual funds, certificates of deposit
and US Treasury securities, totaling $<span id="xdx_907_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831_zNo5sOaH7A4h" title="Marketable Securities">3,554,124</span> and $<span id="xdx_90F_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228_zlWig31DL1hg" title="Marketable Securities">4,563,470</span> that are considered to be highly liquid and easily tradeable as of August
31, 2021 and February 28, 2021, respectively. Mutual funds and US Treasury securities are valued using inputs observable in active markets
for identical securities and are therefore classified as Level&#160;1 and certificates of deposit are classified as Level 2 within the
Company&#8217;s fair value hierarchy.</p>

<p style="font: 10pt Cambria,serif; margin: 0; background-color: white">&#160;</p>

<p id="xdx_847_eus-gaap--IncomeTaxPolicyTextBlock_zjnZdgYiUk49" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_865_zVEIXypbb3Z2">Income Taxes</span></i></b> - The Company accounts for income taxes under the asset and
liability method. Under this method, deferred income taxes are recognized for the tax consequences of "temporary differences"
by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts and
the tax basis of existing assets and liabilities. If it is more likely than not that some portion or all of a deferred tax asset will
not be realized, a valuation allowance is recognized. The Company uses a recognition threshold and a measurement attribute for financial
statement recognition and measurement of tax positions taken or expected to be taken in a return. For those benefits to be recognized,
a tax position must be more likely than not to be sustained upon examination by taxing authorities. As of August 31, 2021 and February
28, 2021, there were no uncertain tax positions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_84E_eus-gaap--GoodwillAndIntangibleAssetsPolicyTextBlock_zeU8zamYRonk" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86F_zRH5b0UrQT6l">Intangible Assets</span></i></b><i> - </i>Include costs of patent applications which are
deferred and charged to operations over <span id="xdx_900_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_pid_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--DomesticPatentsMember_zdW7yeL3dTPk" title="Useful life of intangible assets::XDX::P17Y"><span style="-sec-ix-hidden: xdx2ixbrl0489">seventeen</span></span> years for domestic patents and <span id="xdx_90C_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--ForeignPatentsMember_z0cbok1hctt9" title="Useful life of intangible assets::XDX::P12Y"><span style="-sec-ix-hidden: xdx2ixbrl0491">twelve</span></span> years for foreign patents. The accumulated amortization
of patents is $<span id="xdx_909_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210831_zUz2H3D5C0H2" title="Accumulated amortization of patents">187,206</span> and $<span id="xdx_908_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210228_zcX4c3JSJVt">181,922</span> at August 31, 2021 and February 28, 2021, respectively. Annual amortization expense of such intangible
assets is expected to be approximately $<span id="xdx_909_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_iI_c20210831_z2IBQzalIyme" title="Annual amortization expense this year"><span id="xdx_901_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_iI_c20210831_z9lG7mLUIgz4" title="Annual amortization expense year two"><span id="xdx_90B_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_iI_c20210831_z7GwUQOmI2vj" title="Annual amortization expense year three"><span id="xdx_907_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_iI_c20210831_zXtGVlN3PvO9" title="Annual amortization expense year four"><span id="xdx_907_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_iI_c20210831_zUVU3es1QZs4" title="Annual amortization expense year five">11,000</span></span></span></span></span> per year for the next five years.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_84D_eus-gaap--InventoryPolicyTextBlock_zHqkw7FzF5b4" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86C_zMvOvDYmvQc9">Inventories</span></i></b><i> - </i>Inventories are stated at the lower of cost or net realizable
value. Cost is determined using the first-in, first-out (FIFO) method for raw materials, subassemblies and work-in-progress and the specific
identification method for finished goods. Management compares the cost of inventory with the net realizable value and, if applicable,
an allowance is made for writing down the inventory to its net realizable value, if lower than cost. On an ongoing basis, inventory is
reviewed for potential write-down for estimated obsolescence or unmarketable inventory based upon forecasts for future demand and market
conditions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_84B_eus-gaap--PropertyPlantAndEquipmentPolicyTextBlock_zgaaK8SDPBF3" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_868_zCWEXkxCJEH4">Land and Buildings</span> - </i></b>Land and buildings are stated at cost. Buildings are
being depreciated by use of the straight-line method based on an estimated useful life of forty years.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>




<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

<p id="xdx_84E_eus-gaap--ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_zwqgAzSH4D76" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86E_zkBLSyW2psr2">Long-Lived Assets</span></i></b><i> - </i>The Company periodically evaluates the carrying
value of long-lived assets, including intangible assets, when events and circumstances warrant such a review. The carrying value of a
long-lived asset is considered impaired when the anticipated undiscounted cash flow from such asset is separately identifiable and is
less than its carrying value. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair market
value of the long-lived asset. Fair market value is determined primarily using the anticipated cash flows discounted at a rate commensurate
with the risk involved. No impairment losses were identified or recorded in the six months ended August 31, 2021 and August 31, 2020 on
the Company&#8217;s long-lived assets.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_843_eus-gaap--UseOfEstimates_zZy02yAanDT6" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_864_zh126OGe2id5">Management Estimates</span></i></b><i> - </i>The preparation of the unaudited condensed
consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported
amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated
financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those
estimates.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

<p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zgLrZ9cCvKT5" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_863_z2JgNGcBSpwh">New Accounting Pronouncements</span> </i></b>- In December 2019, the FASB issued ASU 2019-12,
&#8220;<i>Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes</i>.&#8221; The guidance issued in this update simplifies
the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intra-period
tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for
outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or
rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The ASU became effective for
the Company on March 1, 2021 and is not expected to have a significant impact on the Company&#8217;s consolidated financial statements.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">In June 2016, the FASB issued ASU 2016-13 - Financial Instruments-Credit Losses-Measurement
of Credit Losses on Financial Instruments. Codification Improvements to Topic 326, Financial Instruments &#8211; Credit Losses, have been
released in November 2018 (2018-19), November 2019 (2019-10 and 2019-11) and a January 2020 Update (2020-02) that provided additional
guidance on this Topic. This guidance replaces the current incurred loss impairment methodology with a methodology that reflects expected
credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.
For SEC filers meeting certain criteria, the amendments in this ASU are effective for fiscal years, and interim periods within those fiscal
years, beginning after December 15, 2019. For SEC filers that meet the criteria of a smaller reporting company (including this Company)
and for non-SEC registrant public companies and other organizations, the amendments in this ASU are effective for fiscal years, and interim
periods within those fiscal years, beginning after December 15, 2022. Early adoption will be permitted for all organizations for fiscal
years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company is currently in the process of its
analysis of the impact of this guidance on its consolidated financial statements and does not expect the adoption of this guidance to
have a material impact on the Company&#8217;s consolidated financial statements.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Other than Accounting Standards Update (&#8220;ASU&#8221;) 2019-12 and ASU 2016-13 discussed
above, all new accounting pronouncements issued but not yet effective have been deemed to be not applicable to the Company. Hence, the
adoption of these new accounting pronouncements, once effective, is not expected to have an impact on the Company.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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the product is sold.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_84C_eus-gaap--PriorPeriodReclassificationAdjustmentDescription_zguYGSpU7aVh" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86D_za1EjU5Sv9v9">Reclassifications</span> </i></b><i>&#8211;</i> <span style="font-family: TimesNewRomanPSMT">Where
appropriate, certain reclassifications have been made to the prior period to conform to the presentations of the current period.</span></p>

<p style="font: 10pt Calibri,sans-serif; margin: 0">&#160;</p>

<p id="xdx_848_eus-gaap--ResearchAndDevelopmentExpensePolicy_zYo1Q0m99Eac" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_860_zTWRcZZnGjRd">Research and Product Development Expenses</span></i></b><i> - </i>Research and product development
expenses represent engineering and other expenditures incurred for developing new products, for refining the Company's existing products
and for developing systems to meet unique customer specifications for potential orders or for new industry applications and are expensed
as incurred.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_845_eus-gaap--RevenueRecognitionPolicyTextBlock_z6ijbqEX8Khh" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_863_z3ZWkmKbkCLe">Revenue Recognition</span> -</i></b>&#160;The Company recognizes revenue in accordance with
ASC 606, Revenue from Contracts with Customers, the core principle of which is that an entity should recognize revenue to depict the transfer
of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to
receive in exchange for those goods or services.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_846_ecustom--ShippingAndHandlingPolicyTextBlock_z7RHaXujvYu" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_869_zTlsDjxx5Vv">Shipping and Handling Costs</span> - </i></b>Shipping and handling costs are included in
cost of sales in the accompanying unaudited consolidated statements of income.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>




<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

<p id="xdx_845_eus-gaap--ShareBasedCompensationOptionAndIncentivePlansPolicy_ziQEmvcL9w7g" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_866_zlVA6xexNxH1">Stock-Based Compensation</span></i></b> - The Company currently uses a Black-Scholes option
pricing model to calculate the fair value of its stock options. The fair value of each option is estimated on the date of grant based
on the Black-Scholes options-pricing model utilizing certain assumptions for a risk free interest rate; volatility; and expected remaining
lives of the awards. The Company primarily uses historical data to determine the assumptions to be used in the Black-Scholes model. The
assumptions used in calculating the fair value of share-based payment awards represent management&#8217;s best estimates, but these estimates
involve inherent uncertainties and the application of management judgment.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">ASC 718 requires the recognition of the fair value of stock compensation expense on a straight
line basis over the requite service period, based on the terms of the award in net income. The Company accounts for forfeitures as they
occur. Although every effort is made to ensure the accuracy of the Company&#8217;s estimates and assumptions, significant unanticipated
changes in those estimates, interpretations and assumptions may result in recording stock option expense that may materially impact the
Company&#8217;s financial statements for each respective reporting period.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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the transmissible and pathogenic coronavirus a global pandemic, there have been business slowdowns. The outbreak of such a communicable
disease has resulted in a widespread health crisis which has adversely affected general commercial activity and the economies and financial
markets of many countries, including the United States. As the outbreak of the disease has continued through fiscal 2022, the measures
taken by the governments of countries affected have adversely affected the Company&#8217;s business, financial condition, and results
of operations. The pandemic had a slight adverse impact on sales and the demand for products in fiscal 2021, resulting in sales that were
less than expected at the beginning of fiscal 2021. <span style="font-size: 8pt">&#160;</span></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 3: REVENUE RECOGNITION<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">A majority of the Company&#8217;s sales revenue is derived primarily
from short term contracts with customers, which, primarily, are in effect for less than twelve months. Sales revenue from manufactured
equipment transferred at a single point in time accounts for a majority of the Company&#8217;s revenue.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">Sales revenue is recognized when control of the Company&#8217;s manufactured
equipment is transferred to its customers, in an amount that reflects the consideration the Company expects to receive based upon the
agreed transaction price. The Company&#8217;s performance obligations are satisfied when its customers take control of the purchased equipment,
which is based on the contract terms. Based on prior experience, the Company reasonably estimates its sales returns and warranty reserves.
Sales are presented net of discounts and allowances. Discounts and allowances are determined when a sale is negotiated. The Company does
not grant its customers or independent representatives, the ability to return equipment nor does it grant price adjustments after a sale
is complete.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">The Company does not capitalize any sales commission costs related
to the acquisition of a contract. All commissions related to a performance obligation that are satisfied at a point in time are expensed
when the customer takes control of the purchased equipment.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">The Company applies the practical expedient in paragraph ASC 606-10-50-14
and does not disclose information about remaining performance obligations that have original expected durations of one-year or less. The
Company applies the transition practical expedient in paragraph ASC 606-10-65-1(f)(3) and does not disclose the amount of the transaction
price allocated to the remaining performance obligations and an explanation of when the Company expects to recognize that amount as revenue.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">At August 31, 2021, the Company had received $<span id="xdx_90B_eus-gaap--CustomerAdvancesAndDeposits_iI_c20210831_z087rsN46pml" title="Cash deposits">1,917,000</span> in cash deposits,
and had issued Letters of Credit in the amount of $<span id="xdx_90D_eus-gaap--LineOfCredit_iI_c20210831_zK1kzoxKz9u7" title="Letter of credit">618,000</span> to secure these cash deposits. At August 31, 2021, <span id="xdx_908_eus-gaap--LineOfCreditFacilityCollateral_c20210301__20210831_z2M2oWUFJQD" title="Letter of credit, collateral description">the Company was utilizing
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<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">At February 28, 2021, the Company had received $<span id="xdx_90B_eus-gaap--CustomerAdvancesAndDeposits_iI_c20210228_zV1knbtw1qca" title="Cash deposits">1,167,000</span> in cash
deposits for customer orders. During the six months ended August 31, 2021, the Company recognized $<span id="xdx_90F_eus-gaap--ContractWithCustomerLiabilityRevenueRecognized_c20210301__20210831_zJ0wKzXXTfUh" title="Revenue recognized">457,000</span> of these deposits as revenue.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>




<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0; text-align: justify"><span id="xdx_8BC_zL0vhHtX0if8" style="display: none">Revenue Recognition - Sales Revenue by Product Line</span></p>
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    <td style="border-bottom: Black 1pt solid; font: bold 8pt Cambria,serif; text-align: center">% of total</td><td style="font: bold 8pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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    <td style="font: 9pt Cambria,serif; width: 18%; text-align: left">Fluxing Systems</td><td style="font: 9pt Cambria,serif; width: 1%">&#160;</td>
    <td style="font: 9pt Cambria,serif; width: 1%; text-align: left">$</td><td style="font: 9pt Cambria,serif; width: 7%; text-align: right"><span id="xdx_90E_eus-gaap--Revenues_c20210601__20210831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_z7iWhraE9Tbh">117,000</span></td><td style="font: 9pt Cambria,serif; width: 1%; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif; width: 1%">&#160;</td>
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    <td style="font: 9pt Cambria,serif; width: 1%; text-align: left">$</td><td style="font: 9pt Cambria,serif; width: 7%; text-align: right"><span id="xdx_901_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zoBOb6GhYDUb">94,000</span></td><td style="font: 9pt Cambria,serif; width: 1%; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif; width: 1%">&#160;</td>
    <td style="font: italic 9pt Cambria,serif; width: 8%; text-align: right"><span id="xdx_90C_ecustom--SalesRevenuePercent_dp_c20200601__20200831__srt--ProductOrServiceAxis__custom--FluxingSystemsMember_zsXtbJNYmodj" title="Sales revenue, percent">3</span>%</td><td style="font: 9pt Cambria,serif; width: 2%">&#160;</td>
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    <td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: 9pt Cambria,serif; text-align: right"><span id="xdx_90F_eus-gaap--Revenues_c20200601__20200831__srt--ProductOrServiceAxis__custom--OemSystemsMember_zGsatdX4Dmxk" title="Sales revenue">232,000</span></td><td style="font: 9pt Cambria,serif; text-align: left">&#160;</td><td style="font: italic 9pt Cambria,serif">&#160;</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>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457558457240">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 4: INVENTORIES<br></strong></div></th>
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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_InventoryDisclosureAbstract', window );"><strong>Inventory Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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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_InventoryDisclosureTextBlock', window );">NOTE 4: INVENTORIES</a></td>
<td class="text"><p id="xdx_808_eus-gaap--InventoryDisclosureTextBlock_z3yze6UeNO4h" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 4: INVENTORIES</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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<p style="font: 10pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><span id="xdx_8BE_zh976H9pIou6" style="display: none">Inventories - Schedule of Inventory, Current</span></p>
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    <td style="width: 72%; text-align: left">Raw materials and subassemblies</td><td style="width: 2%">&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">786,785</td><td style="text-align: left">&#160;</td></tr>
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    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">1,027,010</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
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    <td>Total</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">3,183,216</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">2,895,386</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_405_eus-gaap--InventoryValuationReserves_iNI_di_msINzET9_znx5CCYf14Ch" style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="text-align: left; padding-bottom: 1pt">Less: Allowance</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(259,361</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(284,280</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
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    <td style="text-align: left; padding-bottom: 2.5pt">Net inventories</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,923,855</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,611,106</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.</p></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 330<br> -URI http://asc.fasb.org/topic&amp;trid=2126998<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457664553336">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 5: STOCK OPTIONS<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 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_EquityAbstract', window );"><strong>Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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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_StockholdersEquityNoteDisclosureTextBlock', window );">NOTE 5: STOCK OPTIONS</a></td>
<td class="text"><p id="xdx_80B_eus-gaap--StockholdersEquityNoteDisclosureTextBlock_zjrz50iBnvw5" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 5: STOCK OPTIONS</b></p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">Under the 2013 Stock Incentive Plan ("2013 Plan"), options can be granted
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common stock. Under the 2013 Plan options expire <span id="xdx_900_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_pid_dtxL_c20210301__20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_zmI9lyzeLH4e" title="Options, expiration period::XDX::P10Y"><span style="-sec-ix-hidden: xdx2ixbrl0654">ten years</span></span> after the date of grant. As of August 31, 2021, there were <span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_zCeCEPlHXsjb" title="Stock options, outstanding">442,625</span> options
outstanding under the 2013 Plan, of which <span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_c20210301__20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2013Member_z19VcYZQZJVf" title="Stock options, vested">306,500</span> are vested.</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">Under the 2003 Stock Incentive Plan, as amended ("2003 Plan"), until
May 2013, options were available to be granted to officers, directors, consultants and employees of the Company and its subsidiaries to
purchase up to <span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2003Member_zK1Us7fg1WVh" title="Stock options shares available for grants">1,500,000</span> shares of the Company's common stock. As of August 31, 2021, there were <span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_c20210831__us-gaap--PlanNameAxis__custom--StockIncentivePlan2003Member_zwciW6UK59g" title="Stock options, outstanding">15,000</span> options outstanding and vested
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<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">During the three months ended August 31, 2021, <span id="xdx_907_ecustom--OptionsExercisedNetCashlessBasis_c20210601__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zPWXy380Fpcg" title="Options exercised, net cashless basis">38,500</span> options were exercised
on a net cashless basis, which resulted in <span id="xdx_904_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_c20210601__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zc3TkUV87Vzi" title="Exercise of stock options">28,728</span> shares of common stock being issued. During the six months ended August 31, 2021, <span id="xdx_908_ecustom--OptionsExercisedNetCashlessBasis_c20210301__20210831__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_z5rnwQwW6gX7" title="Options exercised, net cashless basis">101,834</span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457559687320">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 6: STOCK BASED COMPENSATION<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 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_EquityAbstract', window );"><strong>Equity [Abstract]</strong></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_ShareholdersEquityAndShareBasedPaymentsTextBlock', window );">NOTE 6: STOCK BASED COMPENSATION</a></td>
<td class="text"><p id="xdx_801_eus-gaap--ShareholdersEquityAndShareBasedPaymentsTextBlock_zsKth4OQoI5c" style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"><b>NOTE 6: STOCK BASED COMPENSATION</b></p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company adopted ASC 718, &#8220;Share Based Payments.&#8221; which requires companies
to expense the value of employee stock options and similar awards.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">During the three and six months ended August 31, 2021, the Company granted options to acquire
<span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20210601__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zWysCH2BbrW" title="Options granted"><span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20210301__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zQmxOdNR2Zri" title="Options granted">62,750</span></span> shares to employees and directors exercisable at $<span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210301__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_z6l8oK1Ou6kb" title="Options, exercisable price"><span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210601__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_zN2vXtODWEJ2" title="Options, exercisable price">3.19</span></span>. The options granted to employees and directors vest over <span id="xdx_902_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_dtxL_c20210301__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_z62JRHIztYMe" title="Options, vesting period::XDX::P3Y"><span style="-sec-ix-hidden: xdx2ixbrl0682">three years</span></span> and
expire in <span id="xdx_902_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_dtxL_c20210301__20210831__us-gaap--AwardTypeAxis__custom--EmployeesAndDirectorsMember_zRWIk2JFs7Gk" title="Options, expiration period::XDX::P10Y"><span style="-sec-ix-hidden: xdx2ixbrl0684">ten years</span></span>. The options had a weighted average grant date fair value of $<span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c20210301__20210831_znMFyahJm333" title="Weighted average grant date fair value, per share">1.60</span> per share.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>




<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_89F_eus-gaap--ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_zcF1E5ftqq8c" style="font: 10pt Cambria,serif; margin: 0">The weighted-average fair value of options are estimated on the date of grant using the
Black-Scholes options-pricing model. The weighted-average Black-Scholes assumptions are as follows:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0; display: none"><span id="xdx_8BC_zzXROrAoEf1">Weighted-average Black-Scholes assumptions</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 9pt; font-weight: bold; text-align: center">Six Months Ended <br/> August 31, 2021</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="text-align: left">Expected Life</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_907_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20210301__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember__srt--RangeAxis__srt--MinimumMember_zu36bwwwEDy3" title="Expected life (in years)">5</span> - <span id="xdx_902_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20210301__20210831__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember__srt--RangeAxis__srt--MaximumMember_zHWywRc0GL7c" title="Expected life (in years)">8</span> years</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Risk free interest rate</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_dp_c20210301__20210831_zdikK6ncEaGb" title="Risk free interest rate, minimum">0.78</span>% - <span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_dp_c20210301__20210831_zNgjD4Tb8lj2" title="Risk free interest rate, maximum">1.04</span>%</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="text-align: left">Expected volatility</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_dp_c20210301__20210831_zoT5EXGNjzda" title="Expected volatility, minimum">50.73</span>% - <span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_dp_c20210301__20210831_zOOL7Ngfwqcb" title="Expected volatility, maximum">52.1</span>%</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="width: 82%; text-align: left">Expected dividend yield</td><td style="width: 2%">&#160;</td>
    <td style="width: 16%; text-align: center"><span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_c20210301__20210831_zqsyOJ7KZN2g" title="Expected dividend yield">0</span>%</td></tr>
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<p id="xdx_8AD_zotkSEGbFgF4" style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">Total compensation related to non-vested options not yet recognized as of August
31, 2021 was $<span id="xdx_90C_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_iI_pp0p0_c20210831_zWfNFYw6B3ca" title="Compensation expense yet to be recognized">243,000</span> and will be recognized on a straight line basis over the next <span id="xdx_905_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dtY_c20210301__20210831_zRGDv289eIdc" title="Period for compensation expense to be recognized">2.5</span> years.<span style="font-size: 8pt">&#160;</span></p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0 4.5pt 0 0">For the three and six months ended August 31, 2021 and 2020, net income and earnings
per share reflect the actual deduction for stock-based compensation expense. The impact of applying ASC 718 approximated $<span id="xdx_902_eus-gaap--StockOptionPlanExpense_pp0p0_c20210601__20210831_zVU4pVcOcZij" title="Additional stock-based compensation expense as a result of applying ASC 718">19,000</span> and $<span id="xdx_902_eus-gaap--StockOptionPlanExpense_pp0p0_c20200601__20200831_zHhcTAEsNZ81" title="Additional stock-based compensation expense as a result of applying ASC 718">8,000</span>
in additional compensation expense during the three months ended August 31, 2021 and 2020, respectively. The impact of applying ASC 718
approximated $<span id="xdx_906_eus-gaap--StockOptionPlanExpense_pn3p0_c20210301__20210831_zl0HdIYbQ9ff">41,000</span> and $<span id="xdx_90C_eus-gaap--StockOptionPlanExpense_pn3p0_c20200301__20200831_zqjr13y3Jg68">16,000</span> in additional compensation expense during the six months ended August 31, 2021 and 2020, respectively.
Such amounts are included in general and administrative expenses on the unaudited consolidated statements of income.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for shareholders' equity and share-based payment arrangement. Includes, but is not limited to, disclosure of policy and terms of share-based payment arrangement, deferred compensation arrangement, and employee stock purchase plan (ESPP).</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> -URI http://asc.fasb.org/topic&amp;trid=2208762<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -URI http://asc.fasb.org/topic&amp;trid=2228938<br></p></div>
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<DESCRIPTION>IDEA: XBRL DOCUMENT
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457559803176">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 7: EARNINGS PER SHARE<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 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_EarningsPerShareAbstract', window );"><strong>Earnings Per Share [Abstract]</strong></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_EarningsPerShareTextBlock', window );">NOTE 7: EARNINGS PER SHARE</a></td>
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_899_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zrl1IR2AHKsk" style="font: 10pt Cambria,serif; margin: 0">The following table sets forth the computation of basic and diluted earnings per share:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0"><span id="xdx_8BF_zcXJdpaWOFkk" style="display: none">Earnings Per Share - Computation of basic and diluted earnings per share</span></p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
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    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom">
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    <td colspan="2">&#160;</td><td>&#160;</td></tr>
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    <td style="width: 44%; text-align: left; padding-bottom: 2.5pt; text-indent: -0.1in; padding-left: 0.1in">Numerator for basic and diluted earnings per share</td><td style="width: 2%; padding-bottom: 2.5pt">&#160;</td>
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    <td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right">345,691</td><td style="width: 1%; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="width: 2%; padding-bottom: 2.5pt">&#160;</td>
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    <td>&#160;</td><td>&#160;</td>
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    <td style="text-indent: -0.1in; padding-left: 0.1in">Denominator for basic earnings per share &#8211; weighted average</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">15,500,952</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">15,507,484</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">15,424,126</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><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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for earnings per share.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457650763864">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 8: LONG TERM DEBT<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 31, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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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_LongTermDebtTextBlock', window );">NOTE 8: LONG TERM DEBT</a></td>
<td class="text"><p id="xdx_804_eus-gaap--LongTermDebtTextBlock_zdT6jcejPhd4" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 8: LONG TERM DEBT</b></p>

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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0"><span id="xdx_8BC_zRnMbnBcladj" style="display: none">Long Term Debt - Schedule of Long-Term Debt</span></p>
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    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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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>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457558478184">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 9: REVOLVING LINE OF CREDIT<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 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_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></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_ShortTermDebtTextBlock', window );">NOTE 9: REVOLVING LINE OF CREDIT</a></td>
<td class="text"><p id="xdx_807_eus-gaap--ShortTermDebtTextBlock_zhyv6Oslki9e" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 9: REVOLVING LINE OF CREDIT</b></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company has a $<span id="xdx_90A_eus-gaap--LineOfCreditFacilityMaximumBorrowingCapacity_iI_c20210831__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_z71zDPXEpd66" title="Revolving line of credit"><span id="xdx_906_eus-gaap--LineOfCreditFacilityMaximumBorrowingCapacity_iI_c20210228__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zw0m05o8fpYc" title="Revolving line of credit">1,500,000</span></span> revolving line of credit at prime which was <span id="xdx_908_eus-gaap--LineOfCreditFacilityInterestRateAtPeriodEnd_iI_dp_c20210831__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zq0zX8f4pzG4" title="Interest rate"><span id="xdx_90B_eus-gaap--LineOfCreditFacilityInterestRateAtPeriodEnd_iI_dp_c20210228__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zHcdbY2eN1P3" title="Interest rate">3.25</span></span>% at August
31, 2021 and February 28, 2021. <span id="xdx_908_eus-gaap--LineOfCreditFacilityCollateral_c20210301__20210831__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zLJ9Yfq91RM7" title="Revolving credit line collateral"><span id="xdx_900_eus-gaap--LineOfCreditFacilityCollateral_c20200301__20210228__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zD0vrtludiFf">The revolving credit line is collateralized by the Company&#8217;s accounts receivable and inventory.</span></span>
The revolving credit line is payable on demand and must be retired for a 30-day period, once annually. If the Company fails to perform
the 30-day annual pay down or if the bank elects to terminate the credit line, the bank may, at its option, convert the outstanding balance
to a 36-month term note with payments including interest in 36 equal installments.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">As of August 31, 2021, $<span id="xdx_90A_ecustom--CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers_iI_c20210831__us-gaap--CreditFacilityAxis__us-gaap--LetterOfCreditMember_zQdZxkLghxlh" title="Credit line utilized to collateralize letter of credit issued to customers">618,000</span> of the Company&#8217;s credit line was being utilized to
collateralize letters of credit issued to customers that have remitted cash deposits to the Company on existing orders. The letters of
credit expire in 2022. As of August 31, 2021, there were no outstanding borrowings under the line of credit and the unused portion of
the credit line was $<span id="xdx_904_eus-gaap--LineOfCreditFacilityCurrentBorrowingCapacity_iI_c20210831__us-gaap--CreditFacilityAxis__us-gaap--LetterOfCreditMember_zF84mn5ux716" title="Unused portion of credit line">882,000</span> as of August 31, 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -URI http://asc.fasb.org/topic&amp;trid=2208564<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457558254968">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 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_RisksAndUncertaintiesAbstract', window );"><strong>Risks and Uncertainties [Abstract]</strong></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_ConcentrationRiskDisclosureTextBlock', window );">NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES</a></td>
<td class="text"><p id="xdx_802_eus-gaap--ConcentrationRiskDisclosureTextBlock_z9ah0w2oOXPl" style="font: 10pt Cambria,serif; margin: 0"><b>NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES</b></p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p id="xdx_891_eus-gaap--SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_zoG2lxlQec94" style="font: 10pt Cambria,serif; margin: 0">Export sales to customers located outside the United States and Canada were approximately
as follows:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 7pt Cambria,serif; margin: 0"><span id="xdx_8B3_z5S3y8Jsepb1" style="display: none">Customer Concentrations and Foreign Sales - Schedule of Customer Concentrations and Foreign Sales</span>&#160;</p>

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
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    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: bold 9pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td colspan="2" style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td colspan="2" style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td colspan="2" style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td>
    <td colspan="2" style="font: 10pt Cambria,serif">&#160;</td><td style="font: 10pt Cambria,serif">&#160;</td></tr>
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="font: 10pt Cambria,serif; text-align: left; padding-bottom: 1pt">Latin America<span id="xdx_918_esrt--LatinAmericaMember_zVIic5vHZ7m1" style="display: none">Latin America</span></td><td style="font: 10pt Cambria,serif; padding-bottom: 1pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; padding-bottom: 2.5pt">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
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    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"><span id="xdx_908_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200301__20200831_zhlK0drBEWn8" title="Total sales">3,998,000</span></td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"><span id="xdx_90B_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20210601__20210831_zj2ZHt2jJz9i" title="Total sales">2,517,000</span></td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font: 10pt Cambria,serif; text-align: right"><span id="xdx_904_eus-gaap--RevenueFromContractWithCustomerIncludingAssessedTax_c20200601__20200831_zRpkwiwydYJb" title="Total sales">1,325,000</span></td><td style="font: 10pt Cambria,serif; padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
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<p id="xdx_8A2_zkmIGqt6vti4" style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">During first half of fiscal 2022 and fiscal 2021, sales to foreign customers accounted
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<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">During second quarter of fiscal 2022 and fiscal 2021, sales to foreign customers accounted
for approximately $<span id="xdx_909_eus-gaap--Revenues_c20210601__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zcWq6BnArM47" title="Sales revenue">2,517,000</span> and $<span id="xdx_900_eus-gaap--Revenues_c20200601__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_z5KEWTpGEbF6" title="Sales revenue">1,325,000</span>, or <span id="xdx_900_ecustom--SalesRevenuePercent_dp_c20210601__20210831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zxX8nCQDcs8" title="Sales revenue, percent">62</span>% and <span id="xdx_900_ecustom--SalesRevenuePercent_dp_c20200601__20200831__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__custom--ForeignCustomersMember_zN2CwgX9PSu4" title="Sales revenue, percent">38</span>% respectively, of total revenues.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company had two customers which accounted for <span id="xdx_900_eus-gaap--ConcentrationRiskPercentage1_dp_c20210301__20210831__srt--MajorCustomersAxis__custom--TwoCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zPseSnqST7jf" title="Sales revenue, percent">26</span>% of sales during the first half
of fiscal 2022. The Company had five customers which accounted for <span id="xdx_902_eus-gaap--ConcentrationRiskPercentage1_dp_c20210601__20210831__srt--MajorCustomersAxis__custom--FiveCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zXKxeymqLM27" title="Sales revenue, percent">47</span>% of sales during the second quarter of fiscal 2022. Two
customers accounted for <span id="xdx_903_eus-gaap--ConcentrationRiskPercentage1_dp_c20210301__20210831__srt--MajorCustomersAxis__custom--TwoCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--AccountsReceivableMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zn9SNSgRtHWk" title="Outstanding accounts receivables, percent">55</span>% of the outstanding accounts receivables at August 31, 2021.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The Company had six customers which accounted for <span id="xdx_903_eus-gaap--ConcentrationRiskPercentage1_dp_c20200301__20200831__srt--MajorCustomersAxis__custom--SixCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_z7N2Bd17VyPl" title="Sales revenue, percent">47</span>% of sales during the first half of
fiscal 2021.The Company had six customers which accounted for <span id="xdx_908_eus-gaap--ConcentrationRiskPercentage1_dp_c20200601__20200831__srt--MajorCustomersAxis__custom--SixCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zAlCf9Yel6g" title="Sales revenue, percent">54</span>% of sales during the second quarter of fiscal 2021. Two customers accounted
for <span id="xdx_90A_eus-gaap--ConcentrationRiskPercentage1_dp_c20200301__20210228__srt--MajorCustomersAxis__custom--TwoCustomersMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--AccountsReceivableMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zkSYTxSXmCS9" title="Outstanding accounts receivables, percent">64</span>% of the outstanding accounts receivables at February 28, 2021<span style="font-size: 8pt">&#160;</span>.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><span id="xdx_91D_ecustom--ForeignCustomersMember_zlPA76K3Gyg7" style="display: none">Foreign Customers</span><span id="xdx_918_eus-gaap--SalesRevenueNetMember_zzSu6J5GcNuj" style="display: none">Sales Revenue</span><span id="xdx_916_eus-gaap--AccountsReceivableMember_zhTyRF0edpCf" style="display: none">Accounts Receivables</span><span id="xdx_91F_ecustom--TwoCustomersMember_zxVrxfQo4Hm9" style="display: none">Two Customers</span><span id="xdx_914_ecustom--FiveCustomersMember_z111w2cf0mcj" style="display: none">Five Customers</span><span id="xdx_91F_ecustom--SixCustomersMember_z8i2u6vKsEC8" style="display: none">Six Customers</span></p>

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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -URI http://asc.fasb.org/topic&amp;trid=2134479<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457563954056">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 2: SIGNIFICANT ACCOUNTING POLICIES (Policies)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 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_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></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_ReceivablesPolicyTextBlock', window );">Accounts Receivable, net</a></td>
<td class="text"><p id="xdx_849_eus-gaap--ReceivablesPolicyTextBlock_zo2TpfuLlq9k" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86E_zUUitfUKvdD9">Accounts Receivable, net</span> - </i></b>In the normal course of business, the Company
extends credit to customers. Accounts receivable, less the allowance for doubtful accounts, reflect the net realizable value of receivables
and approximate fair value. The Company records a bad debt expense/allowance based on management&#8217;s estimate of uncollectible accounts.
All outstanding accounts receivable accounts are reviewed for collectability on an individual basis.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_CashAndCashEquivalentsPolicyTextBlock', window );">Cash and Cash Equivalents</a></td>
<td class="text"><p id="xdx_84F_eus-gaap--CashAndCashEquivalentsPolicyTextBlock_zEer2syZlCb7" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86F_z5aNWy93qxd4">Cash and Cash Equivalents</span></i></b><i> - </i>Cash and cash equivalents consist of money
market mutual funds, short term commercial paper and short-term certificates of deposit with original maturities of 90 days or less.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_ConsolidationPolicyTextBlock', window );">Consolidation</a></td>
<td class="text"><p id="xdx_84A_eus-gaap--ConsolidationPolicyTextBlock_zX18u4il7nbi" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86C_z5wdjHOB7VG8">Consolidation</span></i></b> - The accompanying unaudited condensed consolidated financial
statements of the Company include the accounts of the Company and its wholly owned subsidiary, Sono-Tek Industrial Park, LLC (&#8220;SIP&#8221;)
in conformity with generally accepted accounting principles in the United States (&#8220;GAAP&#8221;). SIP operates as a real estate holding
company for the Company&#8217;s real estate operations. All intercompany accounts and transactions have been eliminated in consolidation.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_EarningsPerSharePolicyTextBlock', window );">Earnings Per Share</a></td>
<td class="text"><p id="xdx_84E_eus-gaap--EarningsPerSharePolicyTextBlock_ziXywvQWCLhd" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_860_zwzhOFxb7lJb">Earnings Per Share</span></i></b><i> - </i>Basic earnings per share (&#8220;EPS&#8221;)
is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the
potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock
under the treasury stock method.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock', window );">Equipment, Furnishings and Leasehold Improvements</a></td>
<td class="text"><p id="xdx_84D_ecustom--EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock_z3uNY7IUUYHa" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_866_zONtU2faefsa">Equipment, Furnishings and Leasehold Improvements</span></i></b> - Equipment, furnishings
and leasehold improvements are stated at cost. Depreciation of equipment and furnishings is computed by use of the <span id="xdx_90E_eus-gaap--PropertyPlantAndEquipmentDepreciationMethods_c20210301__20210831__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--EquipmentAndFurnishingsMember_z1pCcsmhNDo4" title="Depreciation methods">straight-line method</span>
based on the estimated useful lives of the assets, which range from <span id="xdx_90E_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_c20210301__20210831__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--EquipmentAndFurnishingsMember_zZ2d7hzJwZt6" title="Estimated useful lives">three to five years</span>.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_FairValueOfFinancialInstrumentsPolicy', window );">Fair Value of Financial Instruments</a></td>
<td class="text"><p id="xdx_844_eus-gaap--FairValueOfFinancialInstrumentsPolicy_zHcq1KbfPav5" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86A_zV25tNumWtV5">Fair Value of Financial Instruments</span> -</i></b> The Company applies Accounting Standards
Codification (&#8220;ASC&#8221;) 820,&#160;<i>Fair Value Measurement&#160;</i>(&#8220;ASC 820&#8221;), which establishes a framework for
measuring fair value and clarifies the definition of fair value within that framework. ASC 820 defines fair value as an exit price, which
is the price that would be received for an asset or paid to transfer a liability in the Company&#8217;s principal or most advantageous
market in an orderly transaction between market participants on the measurement date. The fair value hierarchy established in ASC 820
generally requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair
value. Observable inputs reflect the assumptions that market participants would use in pricing the asset or liability and are developed
based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the entity&#8217;s own assumptions
based on market data and the entity&#8217;s judgments about the assumptions that market participants would use in pricing the asset or
liability and are to be developed based on the best information available in the circumstances.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>




<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The carrying amounts of financial instruments reported in the accompanying unaudited condensed
consolidated financial statements for current assets and current liabilities approximate the fair value because of the immediate or short-term
maturities of the financial instruments.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">The valuation hierarchy is composed of three levels. The classification within the valuation
hierarchy is based on the lowest level of input that is significant to the fair value measurement. The levels within the valuation hierarchy
are described below:</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Level 1 &#8212; Assets and liabilities with unadjusted, quoted prices listed on active
market exchanges. Inputs to the fair value measurement are observable inputs, such as quoted prices in active markets for identical assets
or liabilities.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Level 2 &#8212; Inputs to the fair value measurement are determined using prices for recently
traded assets and liabilities with similar underlying terms, as well as direct or indirect observable inputs, such as interest rates and
yield curves that are observable at commonly quoted intervals.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Level 3 &#8212; Inputs to the fair value measurement are unobservable inputs, such as estimates,
assumptions, and valuation techniques when little or no market data exists for the assets or liabilities.</p>

<p style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white">&#160;</p>

<p id="xdx_893_eus-gaap--FairValueAssetsMeasuredOnRecurringBasisTextBlock_zXoeqDjqdJka" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white">The fair values of financial assets of the
Company were determined using the following categories at August 31, 2021 and February 28, 2021, respectively:</p>

<p style="font: 10pt Cambria,serif; margin: 0; background-color: white">&#160;</p>

<p style="font: 11pt Cambria,serif; margin: 0"><span id="xdx_8BB_z8hw9JjeSePd" style="display: none">Significant Accounting Policies - Fair values of financial assets of the Company</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Cambria, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="font-size: 9pt; font-weight: bold; padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 2.5pt double; width: 1%; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; width: 10%; text-align: right"><span id="xdx_907_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zsvSvBEvzUMd"><span style="-sec-ix-hidden: xdx2ixbrl0474">&#8212;</span></span></td><td style="width: 1%; padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="width: 2%; padding-bottom: 2.5pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
    <td style="padding-bottom: 2.5pt">Marketable Securities &#8211; February 28, 2021</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right"><span id="xdx_901_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_z9tVB9bIV6I">4,261,927</span></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"><span id="xdx_904_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zJ6M7MsvoZra">301,543</span></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">$</td><td style="border-bottom: Black 2.5pt double; text-align: right"><span id="xdx_902_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zSAUbPCJ9awf"><span style="-sec-ix-hidden: xdx2ixbrl0478">&#8212;</span></span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right"><span id="xdx_90A_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228_zsfSuTSFeNK6">4,563,470</span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>


<p id="xdx_8AA_zBvlSBQaWOv4" style="font: 10pt Cambria,serif; margin: 0; text-align: justify; background-color: white">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0; background-color: white">Marketable Securities include mutual funds, certificates of deposit
and US Treasury securities, totaling $<span id="xdx_907_eus-gaap--MarketableSecuritiesCurrent_iI_c20210831_zNo5sOaH7A4h" title="Marketable Securities">3,554,124</span> and $<span id="xdx_90F_eus-gaap--MarketableSecuritiesCurrent_iI_c20210228_zlWig31DL1hg" title="Marketable Securities">4,563,470</span> that are considered to be highly liquid and easily tradeable as of August
31, 2021 and February 28, 2021, respectively. Mutual funds and US Treasury securities are valued using inputs observable in active markets
for identical securities and are therefore classified as Level&#160;1 and certificates of deposit are classified as Level 2 within the
Company&#8217;s fair value hierarchy.</p>

<p style="font: 10pt Cambria,serif; margin: 0; background-color: white">&#160;</p>

<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_IncomeTaxPolicyTextBlock', window );">Income Taxes</a></td>
<td class="text"><p id="xdx_847_eus-gaap--IncomeTaxPolicyTextBlock_zjnZdgYiUk49" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_865_zVEIXypbb3Z2">Income Taxes</span></i></b> - The Company accounts for income taxes under the asset and
liability method. Under this method, deferred income taxes are recognized for the tax consequences of "temporary differences"
by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts and
the tax basis of existing assets and liabilities. If it is more likely than not that some portion or all of a deferred tax asset will
not be realized, a valuation allowance is recognized. The Company uses a recognition threshold and a measurement attribute for financial
statement recognition and measurement of tax positions taken or expected to be taken in a return. For those benefits to be recognized,
a tax position must be more likely than not to be sustained upon examination by taxing authorities. As of August 31, 2021 and February
28, 2021, there were no uncertain tax positions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_GoodwillAndIntangibleAssetsPolicyTextBlock', window );">Intangible Assets</a></td>
<td class="text"><p id="xdx_84E_eus-gaap--GoodwillAndIntangibleAssetsPolicyTextBlock_zeU8zamYRonk" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86F_zRH5b0UrQT6l">Intangible Assets</span></i></b><i> - </i>Include costs of patent applications which are
deferred and charged to operations over <span id="xdx_900_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_pid_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--DomesticPatentsMember_zdW7yeL3dTPk" title="Useful life of intangible assets::XDX::P17Y"><span style="-sec-ix-hidden: xdx2ixbrl0489">seventeen</span></span> years for domestic patents and <span id="xdx_90C_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_dtxL_c20210301__20210831__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--ForeignPatentsMember_z0cbok1hctt9" title="Useful life of intangible assets::XDX::P12Y"><span style="-sec-ix-hidden: xdx2ixbrl0491">twelve</span></span> years for foreign patents. The accumulated amortization
of patents is $<span id="xdx_909_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210831_zUz2H3D5C0H2" title="Accumulated amortization of patents">187,206</span> and $<span id="xdx_908_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20210228_zcX4c3JSJVt">181,922</span> at August 31, 2021 and February 28, 2021, respectively. Annual amortization expense of such intangible
assets is expected to be approximately $<span id="xdx_909_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_iI_c20210831_z2IBQzalIyme" title="Annual amortization expense this year"><span id="xdx_901_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_iI_c20210831_z9lG7mLUIgz4" title="Annual amortization expense year two"><span id="xdx_90B_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_iI_c20210831_z7GwUQOmI2vj" title="Annual amortization expense year three"><span id="xdx_907_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_iI_c20210831_zXtGVlN3PvO9" title="Annual amortization expense year four"><span id="xdx_907_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_iI_c20210831_zUVU3es1QZs4" title="Annual amortization expense year five">11,000</span></span></span></span></span> per year for the next five years.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_InventoryPolicyTextBlock', window );">Inventories</a></td>
<td class="text"><p id="xdx_84D_eus-gaap--InventoryPolicyTextBlock_zHqkw7FzF5b4" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86C_zMvOvDYmvQc9">Inventories</span></i></b><i> - </i>Inventories are stated at the lower of cost or net realizable
value. Cost is determined using the first-in, first-out (FIFO) method for raw materials, subassemblies and work-in-progress and the specific
identification method for finished goods. Management compares the cost of inventory with the net realizable value and, if applicable,
an allowance is made for writing down the inventory to its net realizable value, if lower than cost. On an ongoing basis, inventory is
reviewed for potential write-down for estimated obsolescence or unmarketable inventory based upon forecasts for future demand and market
conditions.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_PropertyPlantAndEquipmentPolicyTextBlock', window );">Land and Buildings</a></td>
<td class="text"><p id="xdx_84B_eus-gaap--PropertyPlantAndEquipmentPolicyTextBlock_zgaaK8SDPBF3" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_868_zCWEXkxCJEH4">Land and Buildings</span> - </i></b>Land and buildings are stated at cost. Buildings are
being depreciated by use of the straight-line method based on an estimated useful life of forty years.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>




<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

<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_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock', window );">Long-Lived Assets</a></td>
<td class="text"><p id="xdx_84E_eus-gaap--ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_zwqgAzSH4D76" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86E_zkBLSyW2psr2">Long-Lived Assets</span></i></b><i> - </i>The Company periodically evaluates the carrying
value of long-lived assets, including intangible assets, when events and circumstances warrant such a review. The carrying value of a
long-lived asset is considered impaired when the anticipated undiscounted cash flow from such asset is separately identifiable and is
less than its carrying value. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair market
value of the long-lived asset. Fair market value is determined primarily using the anticipated cash flows discounted at a rate commensurate
with the risk involved. No impairment losses were identified or recorded in the six months ended August 31, 2021 and August 31, 2020 on
the Company&#8217;s long-lived assets.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_UseOfEstimates', window );">Management Estimates</a></td>
<td class="text"><p id="xdx_843_eus-gaap--UseOfEstimates_zZy02yAanDT6" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_864_zh126OGe2id5">Management Estimates</span></i></b><i> - </i>The preparation of the unaudited condensed
consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported
amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated
financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those
estimates.</p>

<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

<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_NewAccountingPronouncementsPolicyPolicyTextBlock', window );">New Accounting Pronouncements</a></td>
<td class="text"><p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zgLrZ9cCvKT5" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_863_z2JgNGcBSpwh">New Accounting Pronouncements</span> </i></b>- In December 2019, the FASB issued ASU 2019-12,
&#8220;<i>Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes</i>.&#8221; The guidance issued in this update simplifies
the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intra-period
tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for
outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or
rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The ASU became effective for
the Company on March 1, 2021 and is not expected to have a significant impact on the Company&#8217;s consolidated financial statements.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">In June 2016, the FASB issued ASU 2016-13 - Financial Instruments-Credit Losses-Measurement
of Credit Losses on Financial Instruments. Codification Improvements to Topic 326, Financial Instruments &#8211; Credit Losses, have been
released in November 2018 (2018-19), November 2019 (2019-10 and 2019-11) and a January 2020 Update (2020-02) that provided additional
guidance on this Topic. This guidance replaces the current incurred loss impairment methodology with a methodology that reflects expected
credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.
For SEC filers meeting certain criteria, the amendments in this ASU are effective for fiscal years, and interim periods within those fiscal
years, beginning after December 15, 2019. For SEC filers that meet the criteria of a smaller reporting company (including this Company)
and for non-SEC registrant public companies and other organizations, the amendments in this ASU are effective for fiscal years, and interim
periods within those fiscal years, beginning after December 15, 2022. Early adoption will be permitted for all organizations for fiscal
years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company is currently in the process of its
analysis of the impact of this guidance on its consolidated financial statements and does not expect the adoption of this guidance to
have a material impact on the Company&#8217;s consolidated financial statements.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">Other than Accounting Standards Update (&#8220;ASU&#8221;) 2019-12 and ASU 2016-13 discussed
above, all new accounting pronouncements issued but not yet effective have been deemed to be not applicable to the Company. Hence, the
adoption of these new accounting pronouncements, once effective, is not expected to have an impact on the Company.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_StandardProductWarrantyPolicy', window );">Product Warranty</a></td>
<td class="text"><p id="xdx_84A_eus-gaap--StandardProductWarrantyPolicy_zASScQoaHZwk" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86A_zGh1V5x70l1a">Product Warranty</span></i></b> - Expected future product warranty expense is recorded when
the product is sold.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_PriorPeriodReclassificationAdjustmentDescription', window );">Reclassifications</a></td>
<td class="text"><p id="xdx_84C_eus-gaap--PriorPeriodReclassificationAdjustmentDescription_zguYGSpU7aVh" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_86D_za1EjU5Sv9v9">Reclassifications</span> </i></b><i>&#8211;</i> <span style="font-family: TimesNewRomanPSMT">Where
appropriate, certain reclassifications have been made to the prior period to conform to the presentations of the current period.</span></p>

<p style="font: 10pt Calibri,sans-serif; margin: 0">&#160;</p>

<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_ResearchAndDevelopmentExpensePolicy', window );">Research and Product Development Expenses</a></td>
<td class="text"><p id="xdx_848_eus-gaap--ResearchAndDevelopmentExpensePolicy_zYo1Q0m99Eac" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_860_zTWRcZZnGjRd">Research and Product Development Expenses</span></i></b><i> - </i>Research and product development
expenses represent engineering and other expenditures incurred for developing new products, for refining the Company's existing products
and for developing systems to meet unique customer specifications for potential orders or for new industry applications and are expensed
as incurred.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_RevenueRecognitionPolicyTextBlock', window );">Revenue Recognition</a></td>
<td class="text"><p id="xdx_845_eus-gaap--RevenueRecognitionPolicyTextBlock_z6ijbqEX8Khh" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_863_z3ZWkmKbkCLe">Revenue Recognition</span> -</i></b>&#160;The Company recognizes revenue in accordance with
ASC 606, Revenue from Contracts with Customers, the core principle of which is that an entity should recognize revenue to depict the transfer
of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to
receive in exchange for those goods or services.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_sotk_ShippingAndHandlingPolicyTextBlock', window );">Shipping and Handling Costs</a></td>
<td class="text"><p id="xdx_846_ecustom--ShippingAndHandlingPolicyTextBlock_z7RHaXujvYu" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_869_zTlsDjxx5Vv">Shipping and Handling Costs</span> - </i></b>Shipping and handling costs are included in
cost of sales in the accompanying unaudited consolidated statements of income.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>




<p style="font: 10pt Cambria,serif; margin: 0"><b><i>&#160;</i></b></p>

<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_ShareBasedCompensationOptionAndIncentivePlansPolicy', window );">Stock-Based Compensation</a></td>
<td class="text"><p id="xdx_845_eus-gaap--ShareBasedCompensationOptionAndIncentivePlansPolicy_ziQEmvcL9w7g" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_866_zlVA6xexNxH1">Stock-Based Compensation</span></i></b> - The Company currently uses a Black-Scholes option
pricing model to calculate the fair value of its stock options. The fair value of each option is estimated on the date of grant based
on the Black-Scholes options-pricing model utilizing certain assumptions for a risk free interest rate; volatility; and expected remaining
lives of the awards. The Company primarily uses historical data to determine the assumptions to be used in the Black-Scholes model. The
assumptions used in calculating the fair value of share-based payment awards represent management&#8217;s best estimates, but these estimates
involve inherent uncertainties and the application of management judgment.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<p style="font: 10pt Cambria,serif; margin: 0">ASC 718 requires the recognition of the fair value of stock compensation expense on a straight
line basis over the requite service period, based on the terms of the award in net income. The Company accounts for forfeitures as they
occur. Although every effort is made to ensure the accuracy of the Company&#8217;s estimates and assumptions, significant unanticipated
changes in those estimates, interpretations and assumptions may result in recording stock option expense that may materially impact the
Company&#8217;s financial statements for each respective reporting period.</p>

<p style="font: 10pt Cambria,serif; margin: 0">&#160;</p>

<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_sotk_UncertaintiesPolicyTextBlock', window );">Uncertainties</a></td>
<td class="text"><p id="xdx_842_ecustom--UncertaintiesPolicyTextBlock_z8Zu9T7kwWEk" style="font: 10pt Cambria,serif; margin: 0"><b><i><span id="xdx_866_z8v0hsVigF11">Uncertainties</span> - </i></b>Since early 2020, when the World Health Organization established
the transmissible and pathogenic coronavirus a global pandemic, there have been business slowdowns. The outbreak of such a communicable
disease has resulted in a widespread health crisis which has adversely affected general commercial activity and the economies and financial
markets of many countries, including the United States. As the outbreak of the disease has continued through fiscal 2022, the measures
taken by the governments of countries affected have adversely affected the Company&#8217;s business, financial condition, and results
of operations. The pandemic had a slight adverse impact on sales and the demand for products in fiscal 2021, resulting in sales that were
less than expected at the beginning of fiscal 2021. <span style="font-size: 8pt">&#160;</span></p>

<p style="font: 10pt Cambria,serif; margin: 0"><b>&#160;</b></p>

<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 );">- Definition</a><div><p>Disclosure of accounting policy for equipment, furnishings and leasehold improvements.</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;">sotk_EquipmentFurnishingsAndLeaseholdImprovementsPolicyTextBlock</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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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_sotk_ShippingAndHandlingPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for the classification of shipping and handling costs, including whether the costs are included in cost of sales or included in other income statement accounts. If shipping and handling fees are significant and are not included in cost of sales, disclosure includes both the amounts of such costs and the line item on the income statement which includes such 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;">sotk_ShippingAndHandlingPolicyTextBlock</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</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>Disclosure of accounting policy for risk and uncertainties, for example, but not limited to, threat of global pandemics.</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;">sotk_UncertaintiesPolicyTextBlock</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> Period Type:</strong></td>
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</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountingPoliciesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AccountingPoliciesAbstract</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>
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<td><strong> Balance Type:</strong></td>
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</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_CashAndCashEquivalentsPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.</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 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=d3e4273-108586<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsPolicyTextBlock</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>
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</tr>
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</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConsolidationPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting.  The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.</p></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 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123372394&amp;loc=d3e18823-107790<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 1<br> -URI http://asc.fasb.org/extlink&amp;oid=109239629&amp;loc=d3e5614-111684<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConsolidationPolicyTextBlock</td>
</tr>
<tr>
<td style="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:textBlockItemType</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_EarningsPerSharePolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.</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 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3630-109257<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_EarningsPerSharePolicyTextBlock</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>
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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>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueOfFinancialInstrumentsPolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for determining the fair value of financial instruments.</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 820<br> -SubTopic 10<br> -Section 60<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=7493716&amp;loc=d3e21868-110260<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123594938&amp;loc=d3e13279-108611<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueOfFinancialInstrumentsPolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible 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 350<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121556970&amp;loc=d3e13816-109267<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 1<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16265-109275<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_GoodwillAndIntangibleAssetsPolicyTextBlock</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>
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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_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for the impairment and disposal of long-lived assets including goodwill and other intangible assets.</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_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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</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_IncomeTaxPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e32247-109318<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32847-109319<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 19<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32840-109319<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 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124431353&amp;loc=SL116659661-227067<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 9<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32639-109319<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e32280-109318<br><br>Reference 7: 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 http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32809-109319<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_IncomeTaxPolicyTextBlock</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>
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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>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.</p></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 330<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=116847112&amp;loc=d3e4556-108314<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 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6361739&amp;loc=d3e7789-107766<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 912<br> -SubTopic 330<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6471895&amp;loc=d3e55923-109411<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=116847112&amp;loc=d3e4492-108314<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 270<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124437754&amp;loc=d3e543-108305<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -URI http://asc.fasb.org/topic&amp;trid=2126998<br><br>Reference 7: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123372394&amp;loc=d3e18823-107790<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for reclassification affecting comparability of financial statement. Excludes amendment to accounting standards, other change in accounting principle, and correction of error.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.</p></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 958<br> -SubTopic 360<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=120429125&amp;loc=d3e99779-112916<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 210.5-02.13(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 958<br> -SubTopic 360<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=120429125&amp;loc=d3e99893-112916<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 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for receivable. Includes, but is not limited to, accounts receivable and financing 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 310<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123577603&amp;loc=d3e5033-111524<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=84159169&amp;loc=d3e10178-111534<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=84159169&amp;loc=d3e10149-111534<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=84159169&amp;loc=d3e10133-111534<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for costs it has 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.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for revenue. Includes revenue from contract with customer and from other sources.</p></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 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=123372394&amp;loc=d3e18823-107790<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123372394&amp;loc=d3e18823-107790<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.</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 (b),(f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for standard warranties including the methodology for measuring the liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 460<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123368208&amp;loc=d3e12565-110249<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457558277336">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 2: SIGNIFICANT ACCOUNTING POLICIES (Tables)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
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<tr><th class="th"><div>Aug. 31, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></a></td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock', window );">Significant Accounting Policies - Fair values of financial assets of the Company</a></td>
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<p style="font: 11pt Cambria,serif; margin: 0"><span id="xdx_8BB_z8hw9JjeSePd" style="display: none">Significant Accounting Policies - Fair values of financial assets of the Company</span></p>

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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457558370760">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 3: REVENUE RECOGNITION (Tables)<br></strong></div></th>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457716872552">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 4: INVENTORIES (Tables)<br></strong></div></th>
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    <td style="width: 72%; text-align: left">Raw materials and subassemblies</td><td style="width: 2%">&#160;</td>
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    <td style="text-align: left; padding-bottom: 1pt">Less: Allowance</td><td style="padding-bottom: 1pt">&#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">2,923,855</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(6)(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(6)(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(6)(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6361739&amp;loc=d3e7789-107766<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457558379064">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 6: STOCK BASED COMPENSATION (Tables)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
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<tr><th class="th"><div>Aug. 31, 2021</div></th></tr>
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  <tr style="vertical-align: bottom; background-color: rgb(230,239,255)">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457559920744">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 7: EARNINGS PER SHARE (Tables)<br></strong></div></th>
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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>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457558510040">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 8: LONG TERM DEBT (Tables)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 31, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfDebtTableTextBlock', window );">Long Term Debt - Schedule of Long-Term Debt</a></td>
<td class="text"><p id="xdx_890_eus-gaap--ScheduleOfDebtTableTextBlock_zk4VB9ymkBek" style="font: 10pt Cambria,serif; margin: 0">Long-term debt consists of the following:</p>

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    <td style="text-align: left; padding-bottom: 2.5pt">Total long-term debt</td><td style="padding-bottom: 2.5pt">&#160;</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457558520360">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES (Tables)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 31, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RisksAndUncertaintiesAbstract', window );"><strong>Risks and Uncertainties [Abstract]</strong></a></td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock', window );">Customer Concentrations and Foreign Sales - Schedule of Customer Concentrations and Foreign Sales</a></td>
<td class="text"><p id="xdx_891_eus-gaap--SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_zoG2lxlQec94" style="font: 10pt Cambria,serif; margin: 0">Export sales to customers located outside the United States and Canada were approximately
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<th class="th"><div>Feb. 28, 2021</div></th>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in marketable security, 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<td><strong> Name:</strong></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457560935512">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 2: SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Feb. 28, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentLineItems', window );"><strong>Property, Plant and Equipment [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MarketableSecuritiesCurrent', window );">Marketable Securities</a></td>
<td class="nump">$ 3,554,124<span></span>
</td>
<td class="nump">$ 4,563,470<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_FiniteLivedIntangibleAssetsAccumulatedAmortization', window );">Accumulated amortization of patents</a></td>
<td class="nump">187,206<span></span>
</td>
<td class="nump">$ 181,922<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_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths', window );">Annual amortization expense this year</a></td>
<td class="nump">11,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo', window );">Annual amortization expense year two</a></td>
<td class="nump">11,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree', window );">Annual amortization expense year three</a></td>
<td class="nump">11,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour', window );">Annual amortization expense year four</a></td>
<td class="nump">11,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive', window );">Annual amortization expense year five</a></td>
<td class="nump">$ 11,000<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_FiniteLivedIntangibleAssetsByMajorClassAxis=sotk_DomesticPatentsMember', window );">Domestic Patents</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_PropertyPlantAndEquipmentLineItems', window );"><strong>Property, Plant and Equipment [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetUsefulLife', window );">Useful life of intangible assets</a></td>
<td class="text">17 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=sotk_ForeignPatentsMember', window );">Foreign Patents</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_PropertyPlantAndEquipmentLineItems', window );"><strong>Property, Plant and Equipment [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetUsefulLife', window );">Useful life of intangible assets</a></td>
<td class="text">12 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=sotk_EquipmentAndFurnishingsMember', window );">Equipment and Furnishings</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_PropertyPlantAndEquipmentLineItems', window );"><strong>Property, Plant and Equipment [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentDepreciationMethods', window );">Depreciation methods</a></td>
<td class="text">straight-line method<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_PropertyPlantAndEquipmentEstimatedUsefulLives', window );">Estimated useful lives</a></td>
<td class="text">three to five years<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>Useful life 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>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 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:durationItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization</td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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://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)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths</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 amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth 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://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)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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://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)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td>debit</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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://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)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized 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://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)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in marketable security, 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MarketableSecuritiesCurrent</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>Description of the methodology for computing depreciation for classes of depreciable 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 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -URI http://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>
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<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentDepreciationMethods</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and 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 35<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123364984&amp;loc=d3e1205-110223<br></p></div>
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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>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457557080904">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenue Recognition - Sales Revenue by Product Line (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Sales revenue</a></td>
<td class="nump">$ 4,070,467<span></span>
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<td class="nump">$ 3,480,641<span></span>
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<td class="nump">$ 7,714,935<span></span>
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<td class="nump">$ 6,909,185<span></span>
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</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_srt_ProductOrServiceAxis=sotk_FluxingSystemsMember', window );">Fluxing Systems</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_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>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
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<td class="nump">$ 117,000<span></span>
</td>
<td class="nump">$ 94,000<span></span>
</td>
<td class="nump">$ 476,000<span></span>
</td>
<td class="nump">$ 438,000<span></span>
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<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_sotk_SalesRevenuePercent', window );">Sales revenue, percent</a></td>
<td class="nump">3.00%<span></span>
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<td class="nump">3.00%<span></span>
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<td class="nump">6.00%<span></span>
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<td class="nump">6.00%<span></span>
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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_srt_ProductOrServiceAxis=sotk_IntegratedCoatingSystemsMember', window );">Integrated Coating Systems</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_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>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Sales revenue</a></td>
<td class="nump">$ 565,000<span></span>
</td>
<td class="nump">$ 673,000<span></span>
</td>
<td class="nump">$ 720,000<span></span>
</td>
<td class="nump">$ 1,849,000<span></span>
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<td class="nump">14.00%<span></span>
</td>
<td class="nump">19.00%<span></span>
</td>
<td class="nump">9.00%<span></span>
</td>
<td class="nump">27.00%<span></span>
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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_srt_ProductOrServiceAxis=sotk_MultiAxisCoatingSystemsMember', window );">Multi-Axis Coating Systems</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_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>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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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_Revenues', window );">Sales revenue</a></td>
<td class="nump">$ 1,891,000<span></span>
</td>
<td class="nump">$ 1,985,000<span></span>
</td>
<td class="nump">$ 3,970,000<span></span>
</td>
<td class="nump">$ 2,898,000<span></span>
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<td class="nump">46.00%<span></span>
</td>
<td class="nump">57.00%<span></span>
</td>
<td class="nump">52.00%<span></span>
</td>
<td class="nump">42.00%<span></span>
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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_srt_ProductOrServiceAxis=sotk_OemSystemsMember', window );">OEM Systems</a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</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>
<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_Revenues', window );">Sales revenue</a></td>
<td class="nump">$ 845,000<span></span>
</td>
<td class="nump">$ 232,000<span></span>
</td>
<td class="nump">$ 1,171,000<span></span>
</td>
<td class="nump">$ 654,000<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_sotk_SalesRevenuePercent', window );">Sales revenue, percent</a></td>
<td class="nump">21.00%<span></span>
</td>
<td class="nump">7.00%<span></span>
</td>
<td class="nump">15.00%<span></span>
</td>
<td class="nump">9.00%<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_ProductOrServiceAxis=sotk_OtherProductLineMember', window );">Other Product Line</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_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>
<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_Revenues', window );">Sales revenue</a></td>
<td class="nump">$ 652,000<span></span>
</td>
<td class="nump">$ 497,000<span></span>
</td>
<td class="nump">$ 1,378,000<span></span>
</td>
<td class="nump">$ 1,070,000<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_sotk_SalesRevenuePercent', window );">Sales revenue, percent</a></td>
<td class="nump">16.00%<span></span>
</td>
<td class="nump">14.00%<span></span>
</td>
<td class="nump">18.00%<span></span>
</td>
<td class="nump">16.00%<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_ProductOrServiceAxis=sotk_ProductLineMember', window );">Total Product Line</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_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>
<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_Revenues', window );">Sales revenue</a></td>
<td class="nump">$ 4,070,000<span></span>
</td>
<td class="nump">$ 3,481,000<span></span>
</td>
<td class="nump">$ 7,715,000<span></span>
</td>
<td class="nump">$ 6,909,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_sotk_SalesRevenuePercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percent of Sales 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;">sotk_SalesRevenuePercent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>sotk_</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_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_Revenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 3: 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 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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_Revenues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_ProductOrServiceAxis=sotk_FluxingSystemsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=sotk_FluxingSystemsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=sotk_IntegratedCoatingSystemsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=sotk_IntegratedCoatingSystemsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=sotk_MultiAxisCoatingSystemsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=sotk_MultiAxisCoatingSystemsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=sotk_OemSystemsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=sotk_OemSystemsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=sotk_OtherProductLineMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=sotk_OtherProductLineMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=sotk_ProductLineMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=sotk_ProductLineMember</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>40
<FILENAME>R28.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457560376376">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 3: REVENUE RECOGNITION (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Feb. 28, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue from Contract with Customer [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CustomerAdvancesAndDeposits', window );">Cash deposits</a></td>
<td class="nump">$ 1,917,000<span></span>
</td>
<td class="nump">$ 1,167,000<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_LineOfCredit', window );">Letter of credit</a></td>
<td class="nump">$ 618,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityCollateral', window );">Letter of credit, collateral description</a></td>
<td class="text">the Company was utilizing
$618,000 of its available credit line to collateralize these letters of credit<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized', window );">Revenue recognized</a></td>
<td class="nump">$ 457,000<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_ContractWithCustomerLiabilityRevenueRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityRevenueRecognized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CustomerAdvancesAndDeposits">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Refundable consideration, usually cash, held by the entity pending satisfactory completion of the entity's obligations or pending the closing of a contract.</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/otherTransitionRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.15a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&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_CustomerAdvancesAndDeposits</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_LineOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><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))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&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_LineOfCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_LineOfCreditFacilityCollateral">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Discussion of whether the borrowings under the credit facility are secured or unsecured and, if secured, a description of collateral (for example, accounts receivable less than 120 days old, finished goods inventory).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<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(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<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))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(13))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19)(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityCollateral</td>
</tr>
<tr>
<td style="padding-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_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>41
<FILENAME>R29.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457560686632">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Inventories - Schedule of Inventory, Current (Details) - USD ($)<br></strong></div></th>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Feb. 28, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryDisclosureAbstract', window );"><strong>Inventory Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryRawMaterials', window );">Raw materials and subassemblies</a></td>
<td class="nump">$ 1,299,693<span></span>
</td>
<td class="nump">$ 1,081,591<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_InventoryFinishedGoods', window );">Finished goods</a></td>
<td class="nump">580,383<span></span>
</td>
<td class="nump">786,785<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_InventoryWorkInProcess', window );">Work in process</a></td>
<td class="nump">1,303,140<span></span>
</td>
<td class="nump">1,027,010<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryGross', window );">Total</a></td>
<td class="nump">3,183,216<span></span>
</td>
<td class="nump">2,895,386<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_InventoryValuationReserves', window );">Less: Allowance</a></td>
<td class="num">(259,361)<span></span>
</td>
<td class="num">(284,280)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNet', window );">Net inventories</a></td>
<td class="nump">$ 2,923,855<span></span>
</td>
<td class="nump">$ 2,611,106<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_InventoryDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_InventoryDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-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_InventoryFinishedGoods">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryFinishedGoods</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_InventoryGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.</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 210.5-02.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_InventoryRawMaterials">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryRawMaterials</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_InventoryValuationReserves">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 valuation reserve for inventory.</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 330<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 5.BB)<br> -URI http://asc.fasb.org/extlink&amp;oid=27011343&amp;loc=d3e100047-122729<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 210.5-02.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryValuationReserves</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_InventoryWorkInProcess">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryWorkInProcess</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457553872392">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 5: STOCK OPTIONS (Details Narrative) - shares<br></strong></div></th>
<th class="th" colspan="4">3 Months Ended</th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>May 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>May 31, 2020</div></th>
<th class="th"><div>Aug. 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_us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember', window );">Common Stock Par Value $.01</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_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [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_sotk_OptionsExercisedNetCashlessBasis', window );">Options exercised, net cashless basis</a></td>
<td class="nump">38,500<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">101,834<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_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Exercise of stock options</a></td>
<td class="nump">28,728<span></span>
</td>
<td class="nump">49,901<span></span>
</td>
<td class="nump">12,950<span></span>
</td>
<td class="nump">74,805<span></span>
</td>
<td class="nump">78,629<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=sotk_StockIncentivePlan2013Member', window );">2013 Stock Incentive Plan ("2013 Plan")</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_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant', window );">Stock options shares available for grants</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>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,500,000<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_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod', window );">Options, expiration period</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">10 years<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Stock options, outstanding</a></td>
<td class="nump">442,625<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">442,625<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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares', window );">Stock options, vested</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">306,500<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=sotk_StockIncentivePlan2003Member', window );">2003 Stock Incentive Plan ("2003 Plan")</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_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant', window );">Stock options shares available for grants</a></td>
<td class="nump">1,500,000<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="nump">1,500,000<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Stock options, outstanding</a></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="nump">15,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_sotk_OptionsExercisedNetCashlessBasis">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 exercised on a net cashless basis during the current period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">sotk_OptionsExercisedNetCashlessBasis</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>sotk_</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_AccumulatedOtherComprehensiveIncomeLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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_AccumulatedOtherComprehensiveIncomeLossLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of options outstanding, including both vested and non-vested options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 vested.</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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares</td>
</tr>
<tr>
<td style="padding-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_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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<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_StatementEquityComponentsAxis=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_StatementEquityComponentsAxis=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>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PlanNameAxis=sotk_StockIncentivePlan2013Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=sotk_StockIncentivePlan2013Member</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=sotk_StockIncentivePlan2003Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=sotk_StockIncentivePlan2003Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<html>
<head>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457564010392">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Weighted-average Black-Scholes assumptions (Details)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
</tr>
<tr><th class="th"><div>Aug. 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>
</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum', window );">Risk free interest rate, minimum</a></td>
<td class="nump">0.78%<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum', window );">Risk free interest rate, maximum</a></td>
<td class="nump">1.04%<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum', window );">Expected volatility, minimum</a></td>
<td class="nump">50.73%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum', window );">Expected volatility, maximum</a></td>
<td class="nump">52.10%<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate', window );">Expected dividend yield</a></td>
<td class="nump">0.00%<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] | Minimum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Expected life (in years)</a></td>
<td class="text">5 years<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] | Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></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_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Expected life (in years)</a></td>
<td class="text">8 years<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.</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 (f)(2)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate</td>
</tr>
<tr>
<td style="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>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum</td>
</tr>
<tr>
<td style="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>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum</td>
</tr>
<tr>
<td style="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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum</td>
</tr>
<tr>
<td style="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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 minimum risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum</td>
</tr>
<tr>
<td style="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_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_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.D.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=122041274&amp;loc=d3e301413-122809<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1</td>
</tr>
<tr>
<td style="padding-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_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_srt_RangeAxis=srt_MinimumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>44
<FILENAME>R32.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
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<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457563001368">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 6: STOCK BASED COMPENSATION (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_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>
<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Options granted</a></td>
<td class="nump">94,875<span></span>
</td>
<td class="nump">108,884<span></span>
</td>
<td class="nump">112,978<span></span>
</td>
<td class="nump">119,958<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Weighted average grant date fair value, per share</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1.60<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_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions', window );">Compensation expense yet to be recognized</a></td>
<td class="nump">$ 243,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 243,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1', window );">Period for compensation expense to be recognized</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">2 years 6 months<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_StockOptionPlanExpense', window );">Additional stock-based compensation expense as a result of applying ASC 718</a></td>
<td class="nump">$ 19,000<span></span>
</td>
<td class="nump">$ 8,000<span></span>
</td>
<td class="nump">$ 40,717<span></span>
</td>
<td class="nump">$ 16,003<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>
<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>
<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Options granted</a></td>
<td class="nump">62,750<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">62,750<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=sotk_EmployeesAndDirectorsMember', window );">Employees 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>
<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>
<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_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice', window );">Options, exercisable price</a></td>
<td class="nump">$ 3.19<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3.19<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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1', window );">Options, vesting period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">3 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod', window );">Options, expiration period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">10 years<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_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 to be recognized for option under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_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>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross</td>
</tr>
<tr>
<td style="padding-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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (d)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they 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 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1</td>
</tr>
<tr>
<td style="padding-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_StockOptionPlanExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 option 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 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockOptionPlanExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_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=sotk_EmployeesAndDirectorsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=sotk_EmployeesAndDirectorsMember</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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<TYPE>XML
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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;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457563796392">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Earnings Per Share - Computation of basic and diluted earnings per share (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareAbstract', window );"><strong>Earnings Per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Numerator for basic and diluted earnings per share</a></td>
<td class="nump">$ 343,824<span></span>
</td>
<td class="nump">$ 177,763<span></span>
</td>
<td class="nump">$ 1,610,576<span></span>
</td>
<td class="nump">$ 345,691<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_WeightedAverageNumberOfSharesOutstandingBasic', window );">Denominator for basic earnings per share &#8211; weighted average</a></td>
<td class="nump">15,507,484<span></span>
</td>
<td class="nump">15,424,126<span></span>
</td>
<td class="nump">15,500,952<span></span>
</td>
<td class="nump">15,410,952<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_DilutiveSecuritiesAbstract', window );"><strong>Effects of dilutive securities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Stock options for employees, directors and outside consultants</a></td>
<td class="nump">94,875<span></span>
</td>
<td class="nump">108,884<span></span>
</td>
<td class="nump">112,978<span></span>
</td>
<td class="nump">119,958<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_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Denominator for diluted earnings per share</a></td>
<td class="nump">15,602,359<span></span>
</td>
<td class="nump">15,533,010<span></span>
</td>
<td class="nump">15,613,930<span></span>
</td>
<td class="nump">15,530,910<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic Earnings Per Share</a></td>
<td class="nump">$ 0.02<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.10<span></span>
</td>
<td class="nump">$ 0.02<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Diluted Earnings Per Share</a></td>
<td class="nump">$ 0.02<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.10<span></span>
</td>
<td class="nump">$ 0.02<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_DilutiveSecuritiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_DilutiveSecuritiesAbstract</td>
</tr>
<tr>
<td style="padding-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_EarningsPerShareAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_EarningsPerShareAbstract</td>
</tr>
<tr>
<td style="padding-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_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 http://asc.fasb.org/extlink&amp;oid=123482062&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 http://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 http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 4: 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10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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 http://asc.fasb.org/extlink&amp;oid=125512782&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 http://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 http://asc.fasb.org/extlink&amp;oid=125512782&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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://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 http://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 http://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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://asc.fasb.org/extlink&amp;oid=123482062&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 http://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 http://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 http://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 http://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 http://asc.fasb.org/extlink&amp;oid=125511455&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 http://asc.fasb.org/extlink&amp;oid=123482062&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 http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_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 http://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 http://asc.fasb.org/extlink&amp;oid=124509347&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>
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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 class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Gross number of share options (or share units) granted during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross</td>
</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>
</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_WeightedAverageNumberOfDilutedSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1505-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1448-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457560571880">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Long Term Debt - Schedule of Long-Term Debt (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">6 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Feb. 28, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentDecreaseForgiveness', window );">Gain on forgiveness of debt</a></td>
<td class="nump">$ 1,005,372<span></span>
</td>
<td class="text"> <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_LongTermDebt', window );">Total long-term debt</a></td>
<td class="text"> <span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,001,640<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=us-gaap_UnsecuredDebtMember', window );">Unsecured Debt [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentPeriodicPayment', window );">Monthly installments of principal and interest</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 56,370<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_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1.00%<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_DebtInstrumentTerm', window );">Maturity</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">2 years<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_DebtInstrumentDecreaseForgiveness', window );">Gain on forgiveness of debt</a></td>
<td class="nump">1,005,372<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_LongTermDebt', window );">Total long-term debt</a></td>
<td class="text"> <span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,001,640<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentDecreaseForgiveness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Decrease for amounts of indebtedness forgiven by the holder of the debt instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(f))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentDecreaseForgiveness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateStatedPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></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 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<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(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateStatedPercentage</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>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>
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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>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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 http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 470<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://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_DebtInstrumentTerm">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period of time between issuance and maturity of debt instrument, 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>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_DebtInstrumentTerm</td>
</tr>
<tr>
<td style="padding-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_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, after unamortized (discount) premium and debt issuance costs, of long-term debt. 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://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 http://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 http://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 http://asc.fasb.org/extlink&amp;oid=120400017&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 http://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 http://asc.fasb.org/extlink&amp;oid=120398452&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 http://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 http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=us-gaap_UnsecuredDebtMember</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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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457563888840">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 9: REVOLVING LINE OF CREDIT (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1">6 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Feb. 28, 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_LineOfCreditFacilityLineItems', window );"><strong>Line of Credit Facility [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityCollateral', window );">Revolving credit line collateral</a></td>
<td class="text">the Company was utilizing
$618,000 of its available credit line to collateralize these letters of credit<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityLineItems', window );"><strong>Line of Credit Facility [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity', window );">Revolving line of credit</a></td>
<td class="nump">$ 1,500,000<span></span>
</td>
<td class="nump">$ 1,500,000<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_LineOfCreditFacilityInterestRateAtPeriodEnd', window );">Interest rate</a></td>
<td class="nump">3.25%<span></span>
</td>
<td class="nump">3.25%<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_LineOfCreditFacilityCollateral', window );">Revolving credit line collateral</a></td>
<td class="text">The revolving credit line is collateralized by the Company&#8217;s accounts receivable and inventory.<span></span>
</td>
<td class="text">The revolving credit line is collateralized by the Company&#8217;s accounts receivable and inventory.<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_LetterOfCreditMember', window );">Letter of Credit [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_LineOfCreditFacilityLineItems', window );"><strong>Line of Credit Facility [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_sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers', window );">Credit line utilized to collateralize letter of credit issued to customers</a></td>
<td class="nump">$ 618,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity', window );">Unused portion of credit line</a></td>
<td class="nump">$ 882,000<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_sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 borrowed under the credit facility being utilized to collateralize letters of credit issued to customers for cash deposits on existing orders during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">sotk_CreditLineUtilizedForCollateralizeLettersOfCreditToCustomers</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>sotk_</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_LineOfCreditFacilityCollateral">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Discussion of whether the borrowings under the credit facility are secured or unsecured and, if secured, a description of collateral (for example, accounts receivable less than 120 days old, finished goods inventory).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<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(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<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))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(13))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19)(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityCollateral</td>
</tr>
<tr>
<td style="padding-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 http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_LineOfCreditFacilityInterestRateAtPeriodEnd">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 effective interest rate at the end of the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>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 http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd</td>
</tr>
<tr>
<td style="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_LineOfCreditFacilityLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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_LineOfCreditFacilityLineItems</td>
</tr>
<tr>
<td style="padding-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_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 http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_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>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_LetterOfCreditMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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</div>
</body>
</html>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>48
<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;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457644081944">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Customer Concentrations and Foreign Sales - Schedule of Customer Concentrations and Foreign Sales (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax', window );">Total sales</a></td>
<td class="nump">$ 2,517,000<span></span>
</td>
<td class="nump">$ 1,325,000<span></span>
</td>
<td class="nump">$ 4,934,000<span></span>
</td>
<td class="nump">$ 3,998,000<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_srt_StatementGeographicalAxis=srt_AsiaPacificMember', window );">Asia Pacific (APAC)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax', window );">Total sales</a></td>
<td class="nump">1,631,000<span></span>
</td>
<td class="nump">455,000<span></span>
</td>
<td class="nump">2,853,000<span></span>
</td>
<td class="nump">2,377,000<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_srt_StatementGeographicalAxis=us-gaap_EMEAMember', window );">Europe, Middle East, Asia (EMEA)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax', window );">Total sales</a></td>
<td class="nump">593,000<span></span>
</td>
<td class="nump">767,000<span></span>
</td>
<td class="nump">1,436,000<span></span>
</td>
<td class="nump">1,198,000<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_srt_StatementGeographicalAxis=srt_LatinAmericaMember', window );">Latin America</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax', window );">Total sales</a></td>
<td class="nump">$ 293,000<span></span>
</td>
<td class="nump">$ 103,000<span></span>
</td>
<td class="nump">$ 645,000<span></span>
</td>
<td class="nump">$ 423,000<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_RevenueFromContractWithCustomerIncludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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, including 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 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<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 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<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 (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=srt_AsiaPacificMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=srt_AsiaPacificMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=us-gaap_EMEAMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=us-gaap_EMEAMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=srt_LatinAmericaMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=srt_LatinAmericaMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>49
<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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<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140457553804008">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>NOTE 10: CUSTOMER CONCENTRATIONS AND FOREIGN SALES (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">6 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Feb. 28, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskLineItems', window );"><strong>Concentration Risk [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Sales revenue</a></td>
<td class="nump">$ 4,070,467<span></span>
</td>
<td class="nump">$ 3,480,641<span></span>
</td>
<td class="nump">$ 7,714,935<span></span>
</td>
<td class="nump">$ 6,909,185<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_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember', window );">Sales Revenue | Foreign Customers</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_ConcentrationRiskLineItems', window );"><strong>Concentration Risk [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Sales revenue</a></td>
<td class="nump">$ 2,517,000<span></span>
</td>
<td class="nump">$ 1,325,000<span></span>
</td>
<td class="nump">$ 4,934,000<span></span>
</td>
<td class="nump">$ 3,998,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
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<td class="nump">62.00%<span></span>
</td>
<td class="nump">38.00%<span></span>
</td>
<td class="nump">64.00%<span></span>
</td>
<td class="nump">58.00%<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_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember', window );">Sales Revenue | Customer Concentration Risk [Member] | Two Customers</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_ConcentrationRiskLineItems', window );"><strong>Concentration Risk [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">
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">26.00%<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_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember', window );">Sales Revenue | Customer Concentration Risk [Member] | Five Customers</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_ConcentrationRiskLineItems', window );"><strong>Concentration Risk [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskPercentage1', window );">Outstanding accounts receivables, percent</a></td>
<td class="nump">47.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<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_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember', window );">Sales Revenue | Customer Concentration Risk [Member] | Six Customers</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_ConcentrationRiskLineItems', window );"><strong>Concentration Risk [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskPercentage1', window );">Outstanding accounts receivables, percent</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">54.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">47.00%<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_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember', window );">Accounts Receivables | Customer Concentration Risk [Member] | Two Customers</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_ConcentrationRiskLineItems', window );"><strong>Concentration Risk [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 " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskPercentage1', window );">Outstanding accounts receivables, percent</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">55.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">64.00%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_sotk_SalesRevenuePercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percent of Sales 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;">sotk_SalesRevenuePercent</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>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</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_ConcentrationRiskLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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_ConcentrationRiskLineItems</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>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConcentrationRiskPercentage1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.</p></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 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 18<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6351-108592<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=123594938&amp;loc=d3e13531-108611<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 21<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123594938&amp;loc=d3e13537-108611<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6404-108592<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskPercentage1</td>
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<tr>
<td><strong> Data Type:</strong></td>
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<tr>
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<td><strong> Period Type:</strong></td>
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</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Revenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (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_Revenues</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: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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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
