<SEC-DOCUMENT>0001493152-18-006533.txt : 20180510
<SEC-HEADER>0001493152-18-006533.hdr.sgml : 20180510
<ACCEPTANCE-DATETIME>20180510092324
ACCESSION NUMBER:		0001493152-18-006533
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		78
CONFORMED PERIOD OF REPORT:	20180331
FILED AS OF DATE:		20180510
DATE AS OF CHANGE:		20180510

FILER:

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

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11596
		FILM NUMBER:		18820780

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

	MAIL ADDRESS:	
		STREET 1:		8302 DUNWOODY PLACE
		STREET 2:		SUITE 250
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30350
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>form10-q.htm
<TEXT>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>UNITED
STATES</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>SECURITIES
AND EXCHANGE COMMISSION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 12pt"><B>WASHINGTON,
D.C. 20549</B></FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>Form
10-Q</B></FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.5in; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">[X]</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>QUARTERLY
    REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</B></FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>For
the quarterly period ended <U>March 31, 2018</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.5in; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>[&nbsp;&nbsp;
    ]</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>TRANSITION
    REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934</B></FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><B>For
    the transition period from __________________to__________________</b>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Commission
File No. <U>111596</U></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(Exact
name of registrant as specified in its charter)</I></FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 49%; font: 10pt Times New Roman, Times, Serif; text-align: center"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Delaware</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(State
        or other jurisdiction</I></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>of
        incorporation or organization)</I></FONT></P></TD>
    <TD STYLE="width: 2%; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 49%; font: 10pt Times New Roman, Times, Serif; text-align: center"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>58-1954497</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(IRS
        Employer</I></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><I>Identification Number)</I></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 49%; font: 10pt Times New Roman, Times, Serif; text-align: center"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8302
        Dunwoody Place, Suite 250, Atlanta, GA</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(Address
        of principal executive offices)</I></FONT></P></TD>
    <TD STYLE="width: 2%; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 49%; font: 10pt Times New Roman, Times, Serif; text-align: center"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>30350</B></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(Zip
        Code)</I></FONT></P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>(770)
587-9898</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(Registrant&rsquo;s
telephone number)</I></FONT></P>

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

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

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



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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Former
name, former address and former fiscal year, if changed since last report)</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indicate
by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports),
and (2) has been subject to such filing requirements for the past 90 days.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Yes
[X] No [&nbsp;&nbsp;]</FONT></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Yes
[X] No [&nbsp;&nbsp;]</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indicate
by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting
company, or an emerging growth company. See definition of &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer&rdquo;
and &ldquo;smaller reporting company&rdquo; in Rule 12b-2 of the Exchange Act. (Check one):</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Large
accelerated filer [&nbsp;&nbsp;] Accelerated Filer [&nbsp;&nbsp;] Non-accelerated Filer [&nbsp;&nbsp;] Smaller reporting company [X] Emerging growth company [&nbsp;&nbsp;]</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for
complying with any new or revised financial standards provided pursuant to Section 13(a) of the Exchange Act [&nbsp;&nbsp;]</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indicate
by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes [&nbsp;&nbsp;] No [X] </FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indicate
the number of shares outstanding of each of the issuer&rsquo;s classes of Common Stock, as of the close of the latest practical
date.</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 85%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="width: 48%; text-align: center; border-bottom: Black 1.5pt solid">Class</TD><TD STYLE="width: 2%; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="width: 48%; text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding at May 4, 2018</FONT></TD><TD STYLE="width: 1%; text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">Common Stock, $.001 Par Value</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11,762,548 shares</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
</TABLE>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</B></FONT></P>

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

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

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

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

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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Page
    No.</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PART
I</B></FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt"><B><A HREF="#a_001">FINANCIAL INFORMATION</A></B></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt">&nbsp;</TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.65in; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
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        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item
        1.</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><A HREF="#a_002"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated Condensed Financial Statements (Unaudited)</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_003">Consolidated Balance Sheets - March 31, 2018 and December 31, 2017</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">1</TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_004">Consolidated Statements of Operations - Three Months Ended March 31, 2018 and 2017</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">3</TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_005">Consolidated Statements of Comprehensive Income (Loss) - Three Months Ended March 31, 2018 and 2017</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_006">Consolidated Statements of Stockholders&rsquo; Equity -Three Months Ended March 31, 2018</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">5</TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_007">Consolidated Statements of Cash Flows - Three Months Ended March 31, 2018 and 2017</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">6</TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_008">Notes to Consolidated Financial Statements</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item
    2.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_009">Management&rsquo;s Discussion and Analysis of Financial Condition and Results of Operations</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">21</TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item
    3.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_010">Quantitative and Qualitative Disclosures About Market Risk</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">30</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item
    4.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_011">Controls and Procedures</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">31</TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PART
        II</B></FONT></P></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A HREF="#a_012">OTHER INFORMATION</A></B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item
    1.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_013">Legal Proceedings</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">31</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item
    1A.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_014">Risk Factors</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">31</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item
    6.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_015">Exhibits</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">31</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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    <DIV STYLE="page-break-before: always; margin-top: 6pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt/normal Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt/normal Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B><A NAME="a_001"></A>PART
I - FINANCIAL INFORMATION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_002"></A>Item
1. &ndash; Financial Statements</B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_003"></A>Consolidated
Balance Sheets</B></FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">March 31, 2018</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">December 31, 2017</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">(Amounts in Thousands, Except for Share and Per Share Amounts)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">(Unaudited)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">(Audited)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">ASSETS</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Current assets:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 60%; text-align: left; padding-left: 10pt">Cash</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">2,916</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">1,063</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Accounts receivable, net of allowance for doubtful accounts of $725 and $720,
    respectively</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">4,762</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">7,940</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Unbilled receivables - current</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">4,574</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">4,547</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Inventories</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">317</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">393</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Prepaid and other assets</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">3,304</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">3,281</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Current assets related to discontinued operations</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">94</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">89</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 20pt">Total current assets</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">15,967</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">17,313</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Property and equipment:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Buildings and land</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">23,806</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">23,806</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Equipment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">33,254</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">33,182</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Vehicles</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">379</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">393</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Leasehold improvements</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">11,549</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">11,549</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Office furniture and equipment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,670</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,670</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Construction-in-progress</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">826</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">653</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Total property and equipment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">71,484</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">71,253</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Less accumulated depreciation</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(56,654</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(56,383</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Net property and equipment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">14,830</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">14,870</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Property and equipment related to discontinued operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">81</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">81</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Intangibles and other long term assets:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Permits</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">8,406</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">8,419</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Other intangible assets - net</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,432</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,487</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Unbilled receivables - non-current</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">92</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">184</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Finite risk sinking fund</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">15,726</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">15,676</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Other assets</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,272</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,313</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Other assets related to discontinued operations</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">176</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">195</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 20pt; padding-bottom: 2.5pt">Total assets</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">57,982</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">59,538</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD></TR>
</TABLE>

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

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

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Consolidated
Balance Sheets, Continued</B></FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">March 31, 2018</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">December 31, 2017</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">(Amounts in Thousands, Except for Share and per Share Amounts)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">(Unaudited)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">(Audited)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">LIABILITIES AND STOCKHOLDERS&rsquo; EQUITY</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Current liabilities:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 60%; text-align: left; padding-left: 10pt">Accounts payable</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">3,616</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">3,537</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Accrued expenses</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">4,785</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">4,782</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Disposal/transportation accrual</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,478</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,071</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Deferred revenue</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">4,620</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">4,311</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Accrued closure costs - current</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,864</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,791</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Current portion of long-term debt</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,184</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,184</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Current liabilities related to discontinued operations</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">892</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">905</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 20pt">Total current liabilities</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">18,439</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">19,581</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Accrued closure costs</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">5,579</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">5,604</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Other long-term liabilities</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,207</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,191</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Deferred tax liabilities</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,716</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,694</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Long-term debt, less current portion</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,367</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,663</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Long-term liabilities related to discontinued operations</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">351</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">359</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 20pt; padding-bottom: 1.5pt">Total long-term liabilities</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">11,220</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">11,511</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 30pt">Total liabilities</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">29,659</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">31,092</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Commitments and Contingencies (Note 9)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Series B Preferred Stock of subsidiary, $1.00 par value; 1,467,396 shares<BR> authorized,
    1,284,730 shares issued and outstanding, liquidation value $1.00 per share plus accrued and unpaid dividends of $1,011 and
    $995, respectively</TD>
    <TD>&nbsp;<BR>
&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;<BR>
&nbsp;<BR>
&nbsp;<BR>
1,285</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD>&nbsp;<BR>
&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;<BR>
&nbsp;<BR>
&nbsp;<BR>
1,285</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
</TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Stockholders&rsquo; Equity:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Preferred Stock, $.001 par value; 2,000,000 shares authorized, no shares issued and
    outstanding</TD>
    <TD>&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT><BR>
&#8213; </TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD>&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right"><BR>
<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#8213;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
</TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Common Stock, $.001 par value; 30,000,000 shares authorized;<BR>
11,754,697 and 11,738,623 shares issued, respectively;<BR>
11,747,055 and 11,730,981 shares outstanding, respectively</TD>
    <TD>&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;<BR>
&nbsp;<BR>
12</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD>&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;<BR>
&nbsp;<BR>
12</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;<BR>
&nbsp;</TD>
</TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Additional paid-in capital</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">106,523</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">106,417</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Accumulated deficit</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(78,074</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(77,893</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Accumulated other comprehensive loss</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(120</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(112</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Less Common Stock in treasury, at cost; 7,642 shares</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(88</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(88</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 30pt">Total Perma-Fix Environmental Services, Inc. stockholders&rsquo; equity</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">28,253</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">28,336</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Non-controlling interest</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(1,215</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(1,175</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 30pt; padding-bottom: 1.5pt">Total stockholders&rsquo; equity</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">27,038</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">27,161</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 40pt; padding-bottom: 2.5pt">Total liabilities and stockholders&rsquo; equity</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">57,982</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">59,538</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD></TR>
</TABLE>

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

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

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_004"></A>Consolidated
Statements of Operations</B></FONT></P>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="6" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">Three Months Ended</P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0">March 31,</P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">(Amounts in Thousands, Except for Per Share Amounts)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 68%; text-align: left">Revenues</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 12%; text-align: right">12,658</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 12%; text-align: right">12,707</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Cost of goods sold</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">9,337</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">9,988</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Gross profit</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">3,321</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,719</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Selling, general and administrative expenses</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,780</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,850</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Research and development</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">232</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">389</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Gain on disposal of property and equipment</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(8</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#8213;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Income (loss) from operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">317</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(520</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Other income (expense):</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Interest income</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">49</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">35</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Interest expense</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(53</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(100</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Interest expense-financing fees</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(9</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(9</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Income (loss) from continuing operations before taxes</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">304</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(594</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Income tax expense</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(51</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(81</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Income (loss) from continuing operations, net of taxes</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">253</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(675</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Loss from discontinued operations (net of taxes of $0)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(157</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(131</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Net income (loss)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">96</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(806</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Net loss attributable to non-controlling interest</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(40</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(79</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 2.5pt">Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common
    stockholders</TD>
    <TD STYLE="padding-bottom: 2.5pt">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;<BR>
$</TD>
    <TD STYLE="text-align: right; border-bottom: Black 2.5pt double">&nbsp;<BR>
136</TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="padding-bottom: 2.5pt">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;<BR>
$</TD>
    <TD STYLE="text-align: right; border-bottom: Black 2.5pt double">&nbsp;<BR>
(727</TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;<BR>
)</TD>
</TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Net income (loss) per common share attributable to Perma-Fix Environmental Services, Inc.
    stockholders - basic and diluted:</TD>
    <TD>&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD>&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
</TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Continuing operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">.02</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">(.05</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Discontinued operations</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(.01</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(.01</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 20pt; padding-bottom: 2.5pt">Net income (loss) per common share</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">.01</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">(.06</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Number of common shares used in computing net income (loss) per share:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 2.5pt">Basic</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">11,747</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">11,681</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 2.5pt">Diluted</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">11,773</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">11,681</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD></TR>
</TABLE>

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

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

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_005"></A>Consolidated
Statements of Comprehensive Income (Loss)</B></FONT></P>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="6" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">Three Months Ended</P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0">March 31,</P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">(Amounts in Thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 68%; text-align: left; padding-bottom: 1.5pt">Net income (loss)</TD><TD STYLE="width: 2%; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left; border-bottom: Black 1.5pt solid">$</TD><TD STYLE="width: 12%; text-align: right; border-bottom: Black 1.5pt solid">96</TD><TD STYLE="width: 1%; text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="width: 2%; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left; border-bottom: Black 1.5pt solid">$</TD><TD STYLE="width: 12%; text-align: right; border-bottom: Black 1.5pt solid">(806</TD><TD STYLE="width: 1%; text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Other comprehensive (loss) income:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; padding-left: 10pt">Foreign currency translation (loss) gain</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(8</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">12</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Total other comprehensive (loss) income</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(8</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">12</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Comprehensive income (loss)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">88</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(794</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Comprehensive loss attributable to non-controlling interest</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(40</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(79</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 2.5pt">Comprehensive income (loss) attributable to Perma-Fix Environmental
    Services, Inc. stockholders</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">128</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">(715</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">)</TD></TR>
</TABLE>

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

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

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

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>PERMA-FIX
ENVIRONMENTAL SERVICES, INC</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_006"></A>Consolidated
Statement of Stockholders&rsquo; Equity</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>For
the three months ended March 31, 2018</B></FONT></P>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Additional</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Common
    Stock </FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Accumulated
    Other </FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Non-controlling</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Total</FONT></TD><TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="6" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font: 7pt Times New Roman, Times, Serif"><FONT STYLE="font: 7pt Times New Roman, Times, Serif">Common Stock</FONT></FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Paid-In</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Held
    In</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Comprehensive</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Interest
    in </FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Accumulated</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Stockholders&rsquo;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(Amounts
    in thousands, except for share amounts)</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Shares</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Amount</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Capital</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Treasury</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Loss&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Subsidiary&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Deficit</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Equity</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 40%; font-weight: bold; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Balance
    at December 31, 2017</FONT></TD><TD STYLE="width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="width: 3%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">11,738,623</FONT></TD><TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="width: 3%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">12</FONT></TD><TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="width: 4%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">106,417</FONT></TD><TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="width: 4%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(88</FONT></TD><TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD STYLE="width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="width: 5%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(112</FONT></TD><TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD STYLE="width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;$</FONT></TD><TD STYLE="width: 5%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(1,175</FONT></TD><TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD STYLE="width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="width: 5%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(77,893</FONT></TD><TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD STYLE="width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="width: 7%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">27,161</FONT></TD><TD STYLE="width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left"><FONT STYLE="font: 7pt Times New Roman, Times, Serif">Adoption of accounting
    standards</FONT> <FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">updates (Note 2)</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(317</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(317</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Net income (loss)</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(40</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">136</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">96</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Foreign currency translation</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(8</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(8</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Issuance of Common Stock
    for services</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">16,074</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&#8213;&nbsp;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">60</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">60</FONT></TD><TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Stock-Based Compensation</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">46</FONT></TD><TD STYLE="text-align: left; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&#8213;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">46</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font-weight: bold; text-align: left; padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">Balance
    at March 31, 2018</FONT></TD><TD STYLE="padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">11,754,697</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">12</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">106,523</FONT></TD><TD STYLE="text-align: left; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(88</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD STYLE="padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(120</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD STYLE="padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(1,215</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD STYLE="padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">(78,074</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">)</FONT></TD><TD STYLE="padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">27,038</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;</FONT></TD></TR>
</TABLE>

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

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

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_007"></A>Consolidated
Statements of Cash Flows</B></FONT></P>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="6" STYLE="text-align: center">Three Months Ended</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: justify; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="6" STYLE="text-align: center; border-bottom: Black 1.5pt solid">March 31,</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: justify; border-bottom: Black 1.5pt solid">(Amounts in Thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify">Cash flows from operating activities:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="width: 68%; text-align: justify">Net income (loss)</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 12%; text-align: right">96</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 12%; text-align: right">(806</TD><TD STYLE="width: 1%; text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-bottom: 1.5pt">Less: loss from discontinued operations, net of taxes of $0</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(157</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(131</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 10pt">Income (loss) from continuing operations, net of taxes</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">253</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(675</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 10pt">Adjustments to reconcile income (loss) from continuing operations to cash provided by operating activities :</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 20pt">Depreciation and amortization</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">372</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,155</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 20pt">Amortization of debt issuance costs</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">8</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">9</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 20pt">Deferred tax expense</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">22</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">35</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 20pt">Provision for (recovery of) bad debt reserves</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">13</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(17</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 20pt">Gain on disposal of plant, property, and equipment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(8</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#8213;</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 20pt">Issuance of common stock for services</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">60</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">48</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 20pt">Stock-based compensation</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">46</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">23</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 20pt">Changes in operating assets and liabilities of continuing operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 20pt">Accounts receivable</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">3,165</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,983</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 20pt">Unbilled receivables</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">65</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(1,133</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 20pt">Prepaid expenses, inventories and other assets</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">348</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(392</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 20pt; padding-bottom: 1.5pt">Accounts payable, accrued expenses and unearned revenue</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(1,729</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">975</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 30pt">Cash provided by continuing operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,615</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,011</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 30pt; padding-bottom: 1.5pt">Cash used in discontinued operations</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(181</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(139</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify">Cash provided by operating activities</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,434</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,872</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify">Cash flows from investing activities:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 10pt">Purchases of property and equipment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(248</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(22</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 10pt">Proceeds from sale of plant, property, and equipment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">8</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#8213;</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 10pt; padding-bottom: 1.5pt">Payment to finite risk sinking fund</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(50</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(35</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 30pt">Cash used in investing activities of continuing operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(290</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(57</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 30pt; padding-bottom: 1.5pt">Cash provided by investing activities of discontinued operations</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">17</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">17</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify">Cash used in investing activities</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(273</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(40</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify">Cash flows from financing activities:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 10pt">Repayments of revolving credit borrowings</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(14,033</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(12,675</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-left: 10pt">Borrowing on revolving credit</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">14,033</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">11,115</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-left: 10pt; padding-bottom: 1.5pt">Principal repayments of long term debt</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(304</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(304</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify">Cash used in financing activities</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(304</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(1,864</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-bottom: 1.5pt">Effect of exchange rate changes on cash</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(4</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">3</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify">Increase (decrease) in cash</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,853</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(29</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify; padding-bottom: 1.5pt">Cash at beginning of period</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">1,063</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">163</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify; padding-bottom: 2.5pt">Cash at end of period</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">2,916</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">134</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify">Supplemental disclosure:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: justify">Interest paid</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">54</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">102</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: justify">Income taxes paid</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">96</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">12</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
</TABLE>

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

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

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_008"></A>Notes
to Consolidated Condensed Financial Statements</B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>March
31, 2018</B></FONT></P>

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

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

<P STYLE="font: 10pt/normal Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Reference
is made herein to the notes to consolidated financial statements included in our Annual Report on Form 10-K for the year ended
December 31, 2017.</FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1.
    </B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Basis
    of Presentation</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/normal Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
consolidated condensed financial statements included herein have been prepared by the Company (which may be referred to as we,
us or our), without an audit, pursuant to the rules and regulations of the Securities and Exchange Commission (&ldquo;the Commission&rdquo;).
Certain information and note disclosures normally included in financial statements prepared in accordance with accounting principles
generally accepted in the United States of America (&ldquo;U.S. GAAP&rdquo;) have been condensed or omitted pursuant to such rules
and regulations, although the Company believes the disclosures which are made are adequate to make the information presented not
misleading. Further, the consolidated condensed financial statements reflect, in the opinion of management, all adjustments (which
include only normal recurring adjustments) necessary to present fairly the financial position and results of operations as of
and for the periods indicated. The results of operations for the three months ended March 31, 2018 are not necessarily indicative
of results to be expected for the fiscal year ending December 31, 2018.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company suggests that these consolidated condensed financial statements be read in conjunction with the consolidated financial
statements and the notes thereto included in the Company&rsquo;s Annual Report on Form 10-K for the year ended December 31, 2017.</FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>2.
    </B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Summary
    of Significant Accounting Policies</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
accounting policies are as set forth in the notes to the December 31, 2017 consolidated financial statements referred to above.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Recently
Adopted Accounting Standards</B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
May 2014, the Financial Accounting Standards Board (&ldquo;FASB&rdquo;) issued Accounting Standards Update (&ldquo;ASU&rdquo;)
No. 2014-09, &ldquo;Revenue from Contracts with Customers&rdquo; followed by a series of related accounting standard updates (collectively
referred to as &ldquo;Topic 606&rdquo;), which superseded nearly all existing revenue recognition guidance. <FONT STYLE="color: black">Topic
606 provides a single, comprehensive revenue recognition model for all contracts with customers. Under the new standard, a five-step
process is utilized in order to determine revenue recognition, depicting the transfer of goods or services to a customer at an
amount that reflects the consideration it expects to receive in exchange for those goods or services. Topic 606 also requires
additional disclosure surrounding the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts,
including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract.
Topic 606 is effective for annual reporting periods beginning after December 15, 2017 (including interim reporting periods within
those periods). The new standard permits two implementation approaches: the full retrospective method, in which case the standard
would be applied to each prior reporting period presented and the cumulative effect of applying the standard would be recognized
at the earliest period shown, or the modified retrospective method, in which case the cumulative effect of applying the standard
would be recognized at the date of initial application. The Company adopted Topic 606 effective January 1, 2018 under the modified
retrospective approach to all contracts as of date of adoption. The Company recognized the cumulative effect of initially adopting
Topic 606 as an increase of approximately $317,000 to the opening balance of accumulated deficit at January 1, 2018. The adoption
of Topic 606 did not result in significant changes to our revenue recognition model within our Treatment and Services Segments.
The cumulative impact to the opening balance of accumulated deficit at January 1, 2018 was primarily driven by changes to the
timing of revenue recognition in certain immaterial waste streams within our Treatment Segment. See &ldquo;Note 3 &ndash; Revenue&rdquo;
for additional disclosures related to our revenues under the new standard. The comparative previous period information continues
to be reported under the accounting standards in effect for that period. We expect the impact of the adoption of Topic 606 to
be immaterial to our consolidated financial statements on an on-going basis.</FONT></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">The
cumulative effect of the changes made to our January 1, 2018 unaudited Consolidated Balance Sheet for the adoption of Topic 606
was as follows (in thousands):</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 90%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Balance at</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Adjustment</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Opening balance at</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">December 31,</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Due to </TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">January 1,</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Topic 606</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">LIABILITIES AND STOCKHOLDERS&rsquo; EQUITY</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Current liabilities:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 38%; text-align: left">Disposal/transportation accrual</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">2,071</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">(455</TD><TD STYLE="width: 1%; text-align: left">)</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 18%; text-align: right">1,616</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Deferred revenue</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">4,311</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">772</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">5,083</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Stockholders&rsquo; Equity:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Accumulated deficit</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">(77,893</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">(317</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">(78,210</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
accordance with Topic 606 requirements, the disclosure of the impact of adoption of Topic 606 on our unaudited Consolidated Balance
Sheets, Consolidated Statement of Operations, and Consolidated Statement of Comprehensive Income was as follows (in thousands):</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 90%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Consolidated Balance Sheet</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="10" STYLE="text-align: center; border-bottom: Black 1.5pt solid">March 31, 2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Balances Before</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Adoption of</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Effect of Change</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">As Reported</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Topic 606</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Higher/(Lower)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">LIABILITIES AND STOCKHOLDERS&rsquo; EQUITY</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Current liabilities:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 38%; text-align: left">Disposal/transportation accrual</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">1,478</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">2,003</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 18%; text-align: right">(525</TD><TD STYLE="width: 1%; text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Deferred revenue</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">4,620</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">5,507</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(887</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Stockholders&rsquo; Equity:</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Accumulated deficit</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">(78,074</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">(78,028</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">(46</TD><TD STYLE="text-align: left">)</TD></TR>
</TABLE>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 90%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Consolidated Statement of Operations</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="10" STYLE="text-align: center; border-bottom: Black 1.5pt solid">For the three months ended March 31, 2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Balances Before</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Adoption of</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Effect of Change</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">As Reported</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Topic 606</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Higher/(Lower)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 38%; text-align: left">Revenues</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">12,658</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">12,773</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 18%; text-align: right">(115</TD><TD STYLE="width: 1%; text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Cost of goods sold</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">9,337</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">9,406</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(69</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Income from continuing operations, net of taxes</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">253</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">299</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(46</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Net income attributable to Perma-Fix Services, Inc. common stockholders</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">136</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">182</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(46</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic
    and diluted:</TD>
    <TD>&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD>&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD>&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;<BR>
&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;<BR>
&nbsp;</TD>
</TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Continuing operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">.02</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">.02</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"> &#8213; </FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Net income per common shares</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">.01</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">.01</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"> &#8213; </FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
</TABLE>

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

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


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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated
</FONT><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Statement of Comprehensive Income</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: center; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">For
    the three months ended March 31, 2018</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: center; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">As
    Reported</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Balances
    Before Adoption of<BR> Topic 606</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Effect
    of Change Higher/(Lower)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 54%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Net
    income</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 12%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">96</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 12%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">142</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 12%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(46</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Comprehensive
    income attributable to Perma-Fix Environmental Services, Inc. stockholders</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">128</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">174</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(46</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
</TABLE>


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #252525">In
August 2016, the FASB issued ASU 2016-15, &ldquo;Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts
and Cash Payments (a consensus of the Emerging Issues Task Force),&rdquo; which aims to eliminate diversity in practice in how
certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement
of Cash Flows, and other Topics. Subsequently, in November 2016, the FASB issued ASU 2016-18, &ldquo;Statement of Cash Flows (Topic
230), Restricted Cash, a consensus of the FASB Emerging Issues Task Force,&rdquo; which clarifies the guidance on the cash flow
classification and presentation of changes in restricted cash or restricted cash equivalents. Therefore, amounts generally described
as restricted cash or restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period
and end-of-period total amounts shown on the statement of cash flow. ASU 2016-15 and ASU 2016-18 are effective for annual reporting
periods, and interim periods therein, beginning after December 15, 2017. The adoption of these ASUs by the Company effective January
1, 2018 did not have a material impact on </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
Company&rsquo;s financial position, results of operations, or cash flows.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #252525">In
October 2016, the FASB issued ASU 2016-16<I>, </I>&ldquo;Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than
Inventory,&rdquo; which eliminates the existing exception in U.S. GAAP prohibiting the recognition of the income tax consequences
for intra-entity asset transfers. Under ASU 2016-16, entities will be required to recognize the income tax consequences of intra-entity
asset transfers other than inventory when the transfer occurs. ASU 2016-16 is effective on a modified retrospective basis for
fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted.
The adoption of ASU 2016-16 by the Company effective January 1, 2018 did not have a material impact on </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
Company&rsquo;s financial position, results of operations, or cash flows.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #252525">In
January 2017, the FASB issued ASU No. 2017-01, &ldquo;Business Combinations (Topic 805) &ndash; Clarifying the Definition of a
Business.&rdquo; ASU 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with
evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition
of a business affects many areas of accounting including acquisition, disposals, goodwill and consolidation. This standard is
effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. The adoption
of ASU 2017-01 by the Company effective January 1, 2018 did not have a material impact on </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
Company&rsquo;s financial position, results of operations, or cash flows.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #252525">In
May 2017, the FASB issued ASU 2017-09, &ldquo;Compensation &ndash; Stock Compensation (Topic 718): Scope of Modification Accounting.&rdquo;
This ASU provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to
apply modification accounting in Topic 718. ASU 2017-09 is effective for fiscal years beginning after December 15, 2017 and interim
periods within those fiscal years, and early adoption is permitted, including in an interim period. ASU 2017-09 is to be applied
on a prospective basis to an award modified on or after the adoption date. The adoption of ASU 2017-01 by the Company effective
January 1, 2018 did not have a material impact on </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
Company&rsquo;s financial position, results of operations, or cash flows.</FONT></P>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Recently
Issued Accounting Standards &ndash; Not Yet Adopted</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
February 2016, the FASB issued ASU No. 2016-02, &ldquo;Leases (Topic 842).&rdquo; Under ASU 2016-02, an entity will be required
to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements.
ASU 2016-02 offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors
are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial
statements to assess the amount, timing and uncertainty of cash flows arising from leases. For public companies, ASU 2016-02 is
effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period,
and requires a modified retrospective adoption, with early adoption permitted. This ASU is effective January 1, 2019 for the Company.
The Company is still evaluating the potential impact of adopting this guidance on our financial statements.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #252525">In
February 2018, FASB issued ASU 2018-02<I>, &ldquo;</I></FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #222222">Income
Statement&mdash;Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive
Income&rdquo;. </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #252525">This ASU allows
for the reclassification of certain income tax effects related to the Tax Cuts and Jobs Act between &ldquo;Accumulated other comprehensive
income&rdquo; and &ldquo;Retained earnings.&rdquo; This ASU relates to the requirement that adjustments to deferred tax liabilities
and assets related to a change in tax laws or rates to be included in &ldquo;Income from continuing operations&rdquo;, even in
situations where the related items were originally recognized in &ldquo;Other comprehensive income&rdquo; (rather than in &ldquo;Income
from continuing operations&rdquo;). ASU 2018-02 is effective for all entities for fiscal years beginning after December 15, 2018,
and interim periods within those fiscal years, with early adoption permitted. Adoption of this ASU is to be applied either in
the period of adoption or retrospectively to each period in which the effect of the change in the tax laws or rates were recognized.
The Company is currently assessing the impact that this standard will have on its financial statements.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Revenue</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company accounts for revenue in accordance with ASC Topic 606, which we adopted on January 1, 2018 using the modified retrospective
method. The majority of our revenue is derived from short term contracts with an original expected length of one year or less.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Performance
Obligation</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is the unit of account
in Topic 606. A contract&rsquo;s transaction price is allocated to each distinct performance obligation and recognized as revenue
as the performance obligation is satisfied.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Treatment
Segment Revenues:</I></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Contracts
in our Treatment Segment have a single performance obligation as the promise to receive, treat and dispose of waste is not separately
identifiable in the contract and, therefore, not distinct. Performance obligations are generally satisfied over time using the
input method. Under the input method, the Company uses a measure of progress divided into major phases which include receipt,
treatment/processing and shipment/final disposal. As major processing phases are completed and the costs are incurred, the proportional
percentage of revenue is recognized. Transaction price for Treatment Segment contracts are determined by the stated fixed rate
per unit price as stipulated in the contract.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Services
Segment Revenues:</I></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Revenues
for our Services Segment are generated from time and materials, cost reimbursement or fixed price arrangements:</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&rsquo;s primary obligation to customers in time and materials contracts relate to the provision of services to the customer
at the direction of the customer. This provision of services at the request of the customer is the performance obligation, which
is satisfied over time. Revenue earned from time and materials contracts is determined using the input method and is based on
contractually defined billing rates applied to services performed and materials delivered.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&rsquo;s primary performance obligation to customers in cost reimbursement contracts is to complete certain tasks and work
steams. Each specified work stream or task within the contract is considered to be a separate performance obligation. The transaction
price is calculated using an estimated cost to complete the various scope items to achieve the performance obligation as stipulated
in the contract. An estimate is prepared for each individual scope item in the contract and the transaction price is allocated
on a time and materials basis as services are provided. Revenue from cost reimbursement contracts is recognized over time using
the input method based on costs incurred, plus a proportionate amount of fee earned.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
fixed price contracts, the objective of the project is not attained unless all scope items within the contract are completed and
all of the services promised within fixed fee contracts constitute a single performance obligation. Transaction price is estimated
based upon the estimated cost to complete the overall project. Revenue from fixed price contract is recognized over time using
the output method based on the percentage of project completion multiplied by the total fee as a measure of progress.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
nature of our contracts does not give rise to variable considerations.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Significant
Payment Terms</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Invoicing
is based on schedules established in customer contracts. Payment terms vary by customers but are generally established at 30 days
from invoicing.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Disaggregation
of Revenue</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
general, the Company&rsquo;s business segmentation is aligned according to the nature and economic characteristics of our services
and provides meaningful disaggregation of each business segment&rsquo;s results of operations. The following tables present further
disaggregation of our revenues by different categories for our Services and Treatment Segments:</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Three
    Months Ended</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Three
    Months Ended</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; padding-bottom: 1.5pt; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Revenue
    by Contract Type</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">March
    31, 2018</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">March
    31, 2017</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; padding-bottom: 1.5pt; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(In
    thousands)</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Treatment</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Services</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Treatment</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Services</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 38%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Fixed
    price</FONT></TD><TD STYLE="width: 2%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">8,959</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">90</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">9,049</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 2%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">10,034</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">98</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">10,132</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Cost
    reimbursement</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Time
    and materials</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,609</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,609</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,575</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,575</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">8,959</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,699</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">12,658</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">10,034</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,673</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">12,707</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Three
    Months Ended</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Three
    Months Ended</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; padding-bottom: 1.5pt; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Revenue
    by generator</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">March
    31, 2018</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">March
    31, 2017</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; padding-bottom: 1.5pt; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(In
    thousands)</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Treatment</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Services</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; border-bottom: Black 1.5pt solid; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Treatment</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; border-bottom: Black 1.5pt solid; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Services</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; border-bottom: Black 1.5pt solid; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 38%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Domestic
    government</FONT></TD><TD STYLE="width: 2%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">6,536</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,118</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">9,654</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 2%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">7,371</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,068</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">9,439</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Domestic
    commercial</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,423</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">402</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,825</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,663</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">519</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,182</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Foreign
    government</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">153</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">153</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">65</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">65</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Foreign
    commercial</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">26</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">26</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">&#8213;</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">21</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">21</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">8,959</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,699</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">12,658</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">10,034</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,673</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">12,707</FONT></TD><TD STYLE="color: black; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Contract
Balances</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
timing of revenue recognition, billings, and cash collections results in accounts receivable and unbilled receivables (contract
assets). The Company&rsquo;s contract liabilities consist of deferred revenues which represents advance payment from customers
in advance of the completion of our performance obligation.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table represents changes in our contract assets and contract liabilities balances:</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(In
    thousands)</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">March
    31, 2018</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">January
    1, 2018</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Year-to-date<BR>
    Change ($)</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="color: black; text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Year-to-date<BR>
    Change (%)</FONT></TD><TD STYLE="color: black; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; font-weight: bold; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Contract
    assets</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 35%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Account
    receivables, net of allowance</FONT></TD><TD STYLE="width: 2%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 13%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4,762</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 13%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">7,940</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 13%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(3,178</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="width: 1%; color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 13%; color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(40.0</FONT></TD><TD STYLE="width: 1%; color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)%</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Unbilled
    receivables - current</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4,574</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4,547</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">27</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">0.6</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">%</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Unbilled
    receivables - non-current</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">92</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">184</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(92</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(50.0</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)%</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; font-weight: bold; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Contract
    liabilities</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Deferred
    revenue</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4,620</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">5,083</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(463</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="color: black; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="color: black; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(9.1</FONT></TD><TD STYLE="color: black; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)%</FONT></TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
net decrease in our contract assets was primarily due to increased accounts receivable collections. The Company provides various
payment terms to our customers; therefore, our accounts receivable are impacted by these terms and the related timing of accounts
receivable collections.</FONT></P>

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

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Revenue
recognized for the three months ended March 31, 2018 and 2017 that was included in the contract liability balance at the beginning
of each year was $3,811,000 and $2,977,000, respectively. All revenue recognized in each period related to performance obligations
satisfied within the respective period.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Incremental
Costs to Obtain a Contract</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Costs
incurred to obtain contracts with our customers are immaterial and as a result, the Company expenses (within selling, general
and administration expenses (&ldquo;SG&amp;A&rdquo;)) incremental costs incurred in obtaining contracts with our customer as incurred.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Remaining
Performance Obligations</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company applies the practical expedient in paragraph 606-10-50-14 and does not disclose information about remaining performance
obligations that have original expected durations of one year or less.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company applies the transition practical expedient in paragraph 606-10-65-1(f)(3) and does not disclose the amount of the transaction
price allocated to the remaining performance obligations or an explanation of when the Company expects to recognize that amount
as revenue for periods prior to the adoption of Topic 606.</FONT></P>

<P STYLE="color: #252525; font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>4.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Intangible
    Assets</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table summarizes information relating to the Company&rsquo;s definite-lived intangible assets:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="14" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">March
    31, 2018</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="10" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">December
    31, 2017</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Useful</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gross</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Net</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gross</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Net</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Lives</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Carrying</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Accumulated</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Carrying</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Carrying</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Accumulated</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Carrying</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Intangibles
(amount in thousands)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(Years)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Amount</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Amortization</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Amount</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Amount</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Amortization</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Amount</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 36%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Patent</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 5%; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1-17</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 6%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">673</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 6%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(314</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 6%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">359</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 6%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">657</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 6%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(306</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 6%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">351</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Software</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">410</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(400</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">10</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">410</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(398</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">12</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Customer
    relationships</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">12</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,370</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(2,307</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,063</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,370</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(2,246</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,124</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Permit</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: center; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">10</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">545</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(496</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">49</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">545</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(483</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">62</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: center; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: center; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4,998</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(3,517</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,481</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4,982</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(3,433</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,549</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
intangible assets noted above are amortized on a straight-line basis over their useful lives with the exception of customer relationships
which are being amortized using an accelerated method. The Company has only one definite-lived permit that is subject to amortization.</FONT></P>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table summarizes the expected amortization over the next five years for our definite-lived intangible assets (including
the one definite-lived permit):</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 50%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Amount</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Year</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(In
    thousands)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 75%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2018
    (remaining)</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 20%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">251</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2019</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">254</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2020</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">218</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2121</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">198</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2022</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">173</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amortization
expenses relating to the definite-lived intangible assets as discussed above were $84,000 and $94,000 for the three months ended
March 31, 2018 and 2017, respectively.</FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>5.
    </B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Capital
    Stock, Stock Plans and Stock Based Compensation</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company has certain stock option plans under which it awards incentive and non-qualified stock options to employees, officers,
and outside directors.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
January 18, 2018, the Company granted 6,000 options from the Company&rsquo;s 2003 Outside Directors Stock Plan to a new director
elected by the Company&rsquo;s Board of Directors (&ldquo;Board&rdquo;) to fill a vacancy on the Board. The options granted were
for a contractual term of ten years with a vesting period of six months. The exercise price of the options was $4.05 per share,
which was equal to our closing stock price the day preceding the grant date, pursuant to the 2003 Outside Directors Stock Plan.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
January 13, 2017, the Company granted 6,000 options from the Company&rsquo;s 2003 Outside Directors Stock Plan to a new director
elected by the Company&rsquo;s Board to fill a vacancy left by Jack Lahav who retired from the Board in October 2016. The options
granted were for a contractual term of ten years with a vesting period of six months. The exercise price of the options was $3.79
per share, which was equal to our closing stock price the day preceding the grant date, pursuant to the 2003 Outside Directors
Stock Plan.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company estimates fair value of stock options using the Black-Scholes valuation model. Assumptions used to estimate the fair value
of stock options granted include the exercise price of the award, the expected term, the expected volatility of the Company&rsquo;s
stock over the option&rsquo;s expected term, the risk-free interest rate over the option&rsquo;s expected term, and the expected
annual dividend yield. The fair value of the options granted on January 18, 2018 and January 13, 2017 as discussed above and the
related assumptions used in the Black-Scholes option model used to value the options granted were as follows:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="6" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Outside Director Stock Options Granted</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">January 18, 2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">January 13, 2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 60%">Weighted-average fair value per option</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">2.55</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">2.63</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Risk -free interest rate <SUP>(1)</SUP></FONT></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2.62</TD><TD STYLE="text-align: left">%</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2.40</TD><TD STYLE="text-align: left">%</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Expected volatility of stock <SUP>(2)</SUP></FONT></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">57.29</TD><TD STYLE="text-align: left">%</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">56.32</TD><TD STYLE="text-align: left">%</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Dividend yield</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">None</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">None</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Expected option life <SUP>(3)</SUP></FONT></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.0 years</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.0 years</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
</TABLE>


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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(1)</SUP></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(2)</SUP></FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    expected volatility is based on historical volatility from our traded Common Stock over the expected term of the option.</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(3)</SUP></FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    expected option life is based on historical exercises and post-vesting data.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <DIV STYLE="page-break-before: always; margin-top: 6pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table summarizes stock-based compensation recognized for the three months ended March 31, 2018 and 2017 for our employee
and director stock options.</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 60%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="6" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Three
    Months Ended<BR> March 31,</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Stock
    Options</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2018</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2017</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 56%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Employee
    Stock Options</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 18%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">10,000</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 18%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">11,000</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Director
    Stock Options</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">36,000</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">12,000</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">46,000</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">23,000</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2018, the Company has approximately $547,000 of total unrecognized compensation cost related to unvested options, of
which $148,000 is expected to be recognized in remaining 2018, $126,000 in 2019, $114,000 in 2020, $114,000 in 2021, with the
remaining $45,000 in 2022.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
summary of the Company&rsquo;s total Stock Option Plans as of March 31, 2018 and March 31, 2017, and changes during the periods
then ended, are presented below. The Company&rsquo;s Plans consist of the 2010 and 2017 Stock Option Plans and the 2003 Outside
Directors Stock Plan:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Shares</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Weighted
    Average Exercise<BR>
    Price</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Weighted
    Average Remaining Contractual Term<BR>
    (years)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Aggregate
    Intrinsic </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR>
    <FONT STYLE="font-size: 10pt">Value <SUP>(3)</SUP></FONT></FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 41%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Options
    outstanding January 1, 2018</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 11%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">624,800</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 11%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.42</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 12%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 12%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Granted</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">6,000</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.05</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Exercised</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9472;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9472;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Forfeited/expired</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9472;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9472;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options
    outstanding end of period <SUP>(1)</SUP></FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">630,800</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.41</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">5.3</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">259,070</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options
    exercisable at March 31, 2018<SUP>(1)</SUP></FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">191,467</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">6.13</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.7</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">46,970</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Options
    exercisable and expected to be vested at March 31, 2018</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">630,800</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.41</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">5.3</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">259,070</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Shares</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Weighted
    Average Exercise<BR>
    Price</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Weighted
    Average Remaining Contractual Term<BR>
    (years)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Aggregate
    Intrinsic</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR>
    <FONT STYLE="font-size: 10pt">Value <SUP>(3)</SUP></FONT></FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 41%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Options
    outstanding January 1, 2017</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 11%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">247,200</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 11%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">6.69</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 12%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 12%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Granted</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">6,000</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3.79</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Exercised</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9472;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9472;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Forfeited/expired</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(30,000</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">5.00</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options
    outstanding end of period <SUP>(2)</SUP></FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">223,200</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">6.84</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.7</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4,380</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options
    exercisable at March 31, 2017<SUP>(2)</SUP></FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">163,867</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">7.87</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.5</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4,380</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Options
    exercisable and expected to be vested at March 31, 2017</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">223,200</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">6.84</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4.7</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">4,380</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 3%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(1)</SUP></FONT></TD>
    <TD STYLE="width: 97%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options
    with exercise prices ranging from $2.79 to $13.35</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(2)</SUP></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options
    with exercise prices ranging from $2.79 to $14.75</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(3)</SUP></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    intrinsic value of a stock option is the amount by which the market value of the underlying stock exceeds the exercise price
    of the option.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the three months ended March 31, 2018, the Company issued a total of 16,074 shares of its Common Stock under the 2003 Outside
Directors Stock Plan to its outside directors as compensation for serving on our Board. The Company has recorded approximately
$64,000 in compensation expenses (included in selling, general and administration expenses) in connection with the issuance of
shares of its common stock to outside directors.</FONT></P>

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


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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>6.
    </B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>(Income)
    Loss Per Share</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Basic
income (loss) per share is calculated based on the weighted-average number of outstanding common shares during the applicable
period. Diluted income (loss) per share is based on the weighted-average number of outstanding common shares plus the weighted-average
number of potential outstanding common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations
of dilutive earnings per shares. The following table reconciles the income (loss) and average share amounts used to compute both
basic and diluted income (loss) per share:</FONT></P>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 80%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="6" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Three
    Months Ended <BR>
    (Unaudited)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="6" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">March
    31,</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(Amounts
    in Thousands, Except for Per Share Amounts)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2018</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2017</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Net
    income (loss) attributable to Perma-Fix Environmental Services, Inc., common stockholders:</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 60%; text-align: left; padding-left: 10pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Income
    (loss) from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 16%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">293</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 16%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(596</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Loss
    from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(157</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(131</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Net
    income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">136</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(727</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Basic
    Income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">.01</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(.06</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Diluted
    income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">.01</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(.06</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Weighted average
    shares outstanding: Basic weighted average shares outstanding</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">11,747</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">11,681</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Add:
    dilutive effect of stock options</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">26</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Diluted
    weighted average shares outstanding</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">11,773</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">11,681</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Potential
    shares excluded from above weighted average share calcualtions due to their anti-dilutive effect include: Stock options</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">168</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">205</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>



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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7<B>.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Long
    Term Debt</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Long-term
debt consists of the following at March 31, 2018 and December 31, 2017:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(Amounts
    in Thousands)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">March
    31, 2018</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; text-align: center; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">December
    31, 2017</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-weight: bold; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-style: normal">Revolving
    Credit <FONT STYLE="font-weight: normal">facility dated October 31, 2011, as amended, borrowings based upon eligible accounts
    receivable, subject to monthly borrowing base calculation, balance due March 24, 2021.<SUP>(1)</SUP></FONT></FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 60%; font-weight: normal; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-style: normal"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Term
    Loan</B> dated October 31, 2011, as amended, payable in equal monthly installments of principal of $102, balance due on March
    24, 2021. Effective interest rate for the first quarter of 2018 was 5.0%. <SUP>(1)</SUP></FONT></TD><TD STYLE="width: 2%; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 16%; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3,551
                                         </FONT></TD><TD STYLE="width: 1%; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif"><SUP>(2)</SUP></FONT></TD><TD STYLE="width: 2%; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 16%; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,847</FONT></TD><TD STYLE="width: 1%; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif"><SUP>(2)</SUP></FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total
    debt</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,551</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3,847</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Less
    current portion of long-term debt</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,184</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,184</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Long-term
    debt</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,367</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,663</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(1)</SUP></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
    revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property,
    plant, and equipment.</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(2)</SUP></FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Net
    of debt issuance costs of ($107,000) and ($115,000) at March 31, 2018 and December 31, 2017, respectively.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Revolving
Credit and Term Loan Agreement</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 13.5pt; text-align: justify; text-indent: -13.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company entered into an Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated October 31, 2011 (&ldquo;Amended
Loan Agreement&rdquo;), with PNC National Association (&ldquo;PNC&rdquo;), acting as agent and lender. The Amended Loan Agreement
has been amended from time to time since the execution of the Amended Loan Agreement. The Amended Loan Agreement, as subsequently
amended (&ldquo;Revised Loan Agreement&rdquo;), provides the Company with the following credit facility with a maturity date of
March 24, 2021: (a) up to $12,000,000 revolving credit (&ldquo;revolving credit&rdquo;) and (b) a term loan (&ldquo;term loan&rdquo;)
of approximately $6,100,000, which requires monthly installments of approximately $101,600 (based on a seven-year amortization).
The maximum that we can borrow under the revolving credit is based on a percentage of eligible receivables (as defined) at any
one time reduced by outstanding standby letters of credit and borrowing reductions that our lender may impose from time to time.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
the Revised Loan Agreement, we have the option of paying an annual rate of interest due on the revolving credit at prime plus
2% or London Inter Bank Offer Rate (&ldquo;LIBOR&rdquo;) plus 3% and the term loan at prime plus 2.5% or LIBOR plus 3.5%.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the Revised Loan Agreement, the Company may terminate the Revised Loan Agreement, upon 90 days&rsquo; prior written notice
upon payment in full of its obligations under the Revised Loan Agreement. The Company agreed to pay PNC 1.0% of the total financing
had the Company paid off its obligations on or before March 23, 2017, .50% of the total financing had the Company paid off its
obligations after March 23, 2017 but prior to or on March 23, 2018, and .25% of the total financing if the Company pays off its
obligations after March 23, 2018 but prior to or on March 23, 2019. No early termination fee shall apply if the Company pays off
its obligations after March 23, 2019.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2018, the borrowing availability under our revolving credit was approximately $2,823,000, based on our eligible receivables
and includes an indefinite reduction of borrowing availability of $2,000,000 that the Company&rsquo;s lender has imposed. Our
borrowing availability under our revolving credit was also reduced by outstanding standby letters of credit totaling approximately
$2,660,000.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&rsquo;s credit facility with PNC contains certain financial covenants, along with customary representations and warranties.
A breach of any of these financial covenants, unless waived by PNC, could result in a default under our credit facility allowing
our lender to immediately require the repayment of all outstanding debt under our credit facility and terminate all commitments
to extend further credit. The Company met its quarterly financial covenants in the first quarter of 2018 and expects to meet its
quarterly financial covenants in each of the remaining quarters of 2018 and into the first half of 2019.</FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>8.
    </B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>East
    Tennessee Materials and Energy Corporation (&ldquo;M&amp;EC&rdquo;)</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: black">The
Company continues its plan to close its M&amp;EC facility by the end of the M&amp;EC&rsquo;s amended lease term of June 30, 2018.
</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Operations at the M&amp;EC facility are limited
during the remaining term of the lease and the facility continues to transition waste shipments and operational capabilities to
our other Treatment Segment facilities, subject to customer requirements and regulatory approvals. Simultaneously, the Company
continues with closure and decommissioning activities in accordance with M&amp;EC&rsquo;s license and permit requirements.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2018, total accrued closure liabilities for our M&amp;EC subsidiary totaled approximately $1,864,000 which are recorded
as current liabilities. The following reflects changes to the closure liabilities for the M&amp;EC facility from year end 2017:</FONT></P>

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


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

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 50%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Amounts
    in thousands</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 76%; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Balance
    as of December 31, 2017</FONT></TD><TD STYLE="width: 2%; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 20%; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,791</FONT></TD><TD STYLE="width: 1%; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Accretion
    expense</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">19</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Payments</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(946</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Balance
    as of March 31, 2018</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,864</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the first quarter of 2018 and 2017, M&amp;EC&rsquo;s revenues were approximately $56,000 and $3,379,000, respectively.</FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>9.
    </B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Commitments
    and Contingencies</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

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

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

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

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

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

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company has a 25-year finite risk insurance policy entered into in June 2003 with American International Group, Inc. (&ldquo;AIG&rdquo;),
which provides financial assurance to the applicable states for our permitted facilities in the event of unforeseen closure. The
policy, as amended, provides for a maximum allowable coverage of $39,000,000 and has available capacity to allow for annual inflation
and other performance and surety bond requirements. At March 31, 2018, our financial assurance coverage amount under this policy
totaled approximately $29,911,000. The Company has recorded $15,726,000 and $15,676,000 in sinking funds related to this policy
in other long term assets on the accompanying Consolidated Balance Sheets at March 31, 2018 and December 31, 2017, respectively,
which includes interest earned of $1,255,000 and $1,205,000 on the sinking funds as of March 31, 2018 and December 31, 2017, respectively.
Interest income for the three months ended March 31, 2018 and 2017 was approximately $50,000 and $27,000, respectively. If the
Company so elects, AIG is obligated to pay the Company an amount equal to 100% of the sinking fund account balance in return for
complete release of liability from both the Company and any applicable regulatory agency using this policy as an instrument to
comply with financial assurance requirements.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Letter
of Credits and Bonding Requirements</B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">From
time to time, the Company is required to post standby letters of credit and various bonds to support contractual obligations to
customers and other obligations, including facility closures. At March 31, 2018, the total amount of standby letters of credit
outstanding totaled approximately $2,660,000 and the total amount of bonds outstanding totaled approximately $8,767,000.</FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>10.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Discontinued
    Operations </U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&rsquo;s discontinued operations consist of all our subsidiaries included in our Industrial Segment: (1) subsidiaries divested
in 2011 and prior, (2) two previously closed locations, and (3) our PFSG facility which is currently undergoing closure, subject
to final regulatory approval.</FONT></P>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&rsquo;s discontinued operations had net losses of $157,000 and $131,000 for the three months ended March 31, 2018 and
2017 (net of taxes of $0 for each period). The losses were primarily due to costs incurred in the administration and continued
monitoring of our discontinued operations. The Company&rsquo;s discontinued operations had no revenues for each of the periods
noted above.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table presents the major class of assets of discontinued operations as of March 31, 2018 and December 31, 2017.</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 80%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(Amounts
    in Thousands)</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">March
    31, 2018</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">December
    31, 2017</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-weight: bold; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Current
    assets</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 56%; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Other
    assets</FONT></TD><TD STYLE="width: 2%; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 18%; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">94</FONT></TD><TD STYLE="width: 1%; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 2%; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 18%; text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">89</FONT></TD><TD STYLE="width: 1%; text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-left: 10pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total
    current assets</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">94</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">89</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-weight: bold; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Long-term
    assets</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Property,
    plant and equipment, net <SUP>(1)</SUP></FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">81</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">81</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Other
    assets</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">176</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">195</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total
    long-term assets</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">257</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">276</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-weight: bold; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total
    assets</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">351</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">365</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-weight: bold; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Current
    liabilities</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Accounts
    payable</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">11</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">8</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Accrued
    expenses and other liabilities</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">262</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">265</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Environmental
    liabilities</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">619</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">632</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-left: 10pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total
    current liabilities</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">892</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">905</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-weight: bold; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Long-term
    liabilities</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Closure
    liabilities</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">122</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">120</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Environmental
    liabilities</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">229</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">239</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total
    long-term liabilities</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">351</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">359</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="font-weight: bold; text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Total
    liabilities</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,243</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,264</FONT></TD><TD STYLE="text-align: left; padding-bottom: 2.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 63pt; text-align: justify; text-indent: -9pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>&nbsp;</SUP></FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.7in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.2in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(1)</SUP></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">net
    of accumulated depreciation of $10,000 for each period presented.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 63pt; text-align: justify; text-indent: -9pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&rsquo;s discontinued operations include a note receivable in the amount of approximately $375,000 recorded in May 2016
resulting from the sale of property at our Perma-Fix of Michigan, Inc. subsidiary. This note requires 60 equal monthly installment
payments by the buyer of approximately $7,250 (which includes interest). At March 31, 2018, the outstanding amount on this note
receivable totaled approximately $250,000, of which approximately $74,000 is included in &ldquo;Current assets related to discontinued
operations&rdquo; and approximately $176,000 is included in &ldquo;Other assets related to discontinued operations&rdquo; in the
accompanying Consolidated Balance Sheets.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 58.5pt; text-align: justify; text-indent: -58.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>11.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Operating
    Segments</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 408.75pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">-</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">nuclear,
    low-level radioactive, mixed waste (containing both hazardous and low-level radioactive constituents), hazardous and non-hazardous
    waste treatment, processing and disposal services primarily through three uniquely licensed and permitted treatment and storage
    facilities; and</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">-</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">research
                                         and development (&ldquo;R&amp;D&rdquo;) activities to identify, develop and implement
                                         innovative waste processing techniques for problematic waste streams.&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P></TD></TR>
</TABLE>

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

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">-</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Technical
    services, which include:</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.75in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9675;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">professional
    radiological measurement and site survey of large government and commercial installations using advanced methods, technology
    and engineering;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9675;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">integrated
    Occupational Safety and Health services including industrial hygiene (&ldquo;IH&rdquo;) assessments; hazardous materials surveys,
    e.g., exposure monitoring; lead and asbestos management/abatement oversight; indoor air quality evaluations; health risk and
    exposure assessments; health &amp; safety plan/program development, compliance auditing and training services; and Occupational
    Safety and Health Administration (&ldquo;OSHA&rdquo;) citation assistance;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9675;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">global
    technical services providing consulting, engineering, project management, waste management, environmental, and decontamination
    and decommissioning field, technical, and management personnel and services to commercial and government customers; and</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#9675;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">on-site
    waste management services to commercial and governmental customers.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in; color: #1F497D"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"></TD>
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #1F497D">-</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Nuclear
    services, which include:</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.75in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9675;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">technology-based
    services including engineering, decontamination and decommissioning (&ldquo;D&amp;D&rdquo;), specialty services and construction,
    logistics, transportation, processing and disposal;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9675;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">remediation
    of nuclear licensed and federal facilities and the remediation cleanup of nuclear legacy sites. Such services capability includes:
    project investigation; radiological engineering; partial and total plant D&amp;D; facility decontamination, dismantling, demolition,
    and planning; site restoration; logistics; transportation; and emergency response; and</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.25in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #1F497D">-</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
    company owned equipment calibration and maintenance laboratory that services, maintains, calibrates, and sources (i.e., rental)
    health physics, IH and customized nuclear, environmental, and occupational safety and health (&ldquo;NEOSH&rdquo;) instrumentation.</FONT></TD></TR>
</TABLE>


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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">MEDICAL
SEGMENT reporting includes: R&amp;D costs for the new medical isotope production technology from our majority-owned Polish subsidiary,
PF Medical. The Medical Segment has not generated any revenue as it continues to be primarily in the R&amp;D stage. All costs
incurred for the Medical Segment are reflected within R&amp;D in the accompanying Consolidated Statements of Operations.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
reporting segments exclude our corporate headquarters and our discontinued operations (see &ldquo;Note 10 &ndash; Discontinued
Operations&rdquo;) which do not generate revenues.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
table below presents certain financial information of our operating segments for the three months ended March 31, 2018 and 2017
(in thousands).</FONT></P>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Segment
Reporting for the Quarter Ended March 31, 2018</B></FONT></P>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treatment</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Services</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Medical</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Segments
    Total</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Corporate
    <SUP>(1)</SUP> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated
    Total</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 34%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Revenue
    from external customers</FONT></TD>
    <TD STYLE="width: 2%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="width: 7%; text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8,959</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="width: 7%; text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3,699</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 7%; text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="width: 9%; text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12,658</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="width: 10%; text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="width: 7%; text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12,658</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Intercompany
    revenues</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">213</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">14</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">227</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Gross
    profit</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2,780</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">541</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3,321</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3,321</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Research
    and development</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">114</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">100</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">214</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">18</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">232</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Interest
    income</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">49</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">49</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Interest
    expense</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(52</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(53</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Interest
    expense-financing fees</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: bold 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: bold 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: bold 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="font: bold 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(9</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(9</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Depreciation
    and amortization</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">240</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">123</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">363</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">9</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">372</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Segment
    income (loss) before income taxes</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,744</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(86</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif">(100</TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,558</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1,254</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">304</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Income
    tax expense</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(51</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(51</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(51</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Segment
    income (loss)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,693</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(86</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(100</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,507</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1,254</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">253</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Expenditures
    for segment assets</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">220</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">25</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">245</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">248</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
</TABLE>


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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Segment
Reporting for the Quarter Ended March 31, 2017</B></FONT></P>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: bottom; font-family: Times New Roman, Times, Serif">
    <TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Treatment</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Services</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Medical</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Segments
    Total</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Corporate
    <SUP>(1)</SUP> </FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Consolidated
    Total</FONT></TD><TD STYLE="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 34%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Revenue
    from external customers</FONT></TD><TD STYLE="width: 2%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">10,034</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,673</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 7%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 9%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">12,707</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 10%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="width: 1%; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">$</FONT></TD><TD STYLE="width: 7%; text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">12,707</FONT></TD><TD STYLE="width: 1%; text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Intercompany
    revenues</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">16</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">3</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">19</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gross
    profit</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,687</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">32</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,719</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">2,719</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Research
    and development</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">181</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">200</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">381</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">8</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">389</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Interest
    income</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">35</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">35</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Interest
    expense</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(8</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(1</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(9</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(91</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(100</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Interest
    expense-financing fees</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(9</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(9</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Depreciation
    and amortization</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,009</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">136</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,145</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">10</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,155</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Segment
    income (loss) before income taxes</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,602</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(707</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(200</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">695</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(1,289</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(594</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Income
    tax expense</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(80</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(80</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(1</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(81</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255); font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Segment
    income (loss)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">1,522</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(707</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(200</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">615</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(1,290</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">(675</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">)</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White; font-family: Times New Roman, Times, Serif">
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">Expenditures
    for segment assets</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">15</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">7</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">22</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&mdash;</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD><TD STYLE="text-align: right; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">22</FONT></TD><TD STYLE="text-align: left; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>



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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(1)</SUP></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amounts
    reflect the activity for corporate headquarters not included in the segment information.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: -9pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

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<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>12.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Income
    Taxes</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Income
tax expenses were $51,000 and $81,000 for continuing operations for the three months ended March 31, 2018 and the corresponding
period of 2017, respectively. The Company&rsquo;s effective tax rate was approximately (16.8%) for the three months ended March
31, 2018 as compared to a tax rate of approximately (13.6%) for the corresponding period of 2017.</FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Management
    Incentive Plans (&ldquo;MIPs&rdquo;)</U></B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
January 18, 2018, the Company&rsquo;s Board and Compensation and Stock Option Committee (the &ldquo;Compensation Committee&rdquo;)
approved individual MIPs for the (&ldquo;CEO&rdquo;), Chief Financial Officer (&ldquo;CFO&rdquo;), and Executive Vice President
(&ldquo;EVP&rdquo;) of Strategic Initiatives. Each MIP is effective January 1, 2018 and applicable for the year ended December
31, 2018. Each MIP provides guidelines for the calculation of annual cash incentive based compensation, subject to Compensation
Committee oversight and modification. Each MIP awards cash compensation based on achievement of performance thresholds, with the
amount of such compensation established as a percentage of the executive&rsquo;s annual 2018 base salary on the approval date
of the MIP. The potential target performance compensation ranges from 5% to 100% of the 2018 base salary for the CEO ($13,350
to $267,000), 5% to 100% of the 2018 base salary for the CFO ($11,475 to $229,494), and 5% to 100% of the 2018 base salary for
the EVP of Strategic Initiatives ($11,170 to $223,400).</FONT></P>

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


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



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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>14.
<U>Subsequent Events</U></B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>M&amp;EC
Series B Preferred Stock</I></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Series B Preferred Stock (the &ldquo;Series B Preferred Stock&rdquo;) of the Company&rsquo;s consolidated subsidiary, M&amp;EC,
is non-voting and non-convertible, has a $1.00 liquidation preference per share and may be redeemed at the option and sole discretion
of M&amp;EC at any time, and from time to time, from and after one year from the date of issuance of the Series B Preferred Stock
for the purchase price of $1.00. Holders of shares of M&amp;EC Series B Preferred Stock are entitled to receive, when, as and
if declared by M&amp;EC&rsquo;s board of directors out of funds legally available for payment, cumulative dividends at the rate
per annum of 5% per share on the liquidation preference of $1.00 per share of Series B Preferred Stock. Dividends on the Series
B Preferred Stock shall accrue without interest beginning one year from the date of original issuance (June 25, 2001), and shall
be payable in cash, if, when, and as declared by M&amp;EC board, quarterly each year commencing on the first dividend due date
following the expiration of one year from the date of original issuance. On April 24, 2018, the Company announced a private exchange
offer (&ldquo;Exchange Offer&rdquo;), to all holders of the M&amp;EC Series B Preferred Stock , to exchange, for every share of
Series B Preferred Stock tendered, (a) 0.1050805 shares of newly issued common stock of the Company, par value $.001 per share
(&ldquo;Common Stock&rdquo;), and (b) cash in lieu of fractional shares of Common Stock that would otherwise be issuable to the
tendering holder of Series B Preferred Stock, in an amount equal to such fractional share of Common Stock multiplied by the closing
price per share of the Common Stock on the last trading day immediately preceding the expiration date of the Exchange Offer. The
Exchange Offer is being made on an all-or-none basis, for all 1,284,730 shares of Series B Preferred Stock outstanding and has
an expiration date of May 30, 2018. Assuming all currently outstanding shares of Series B Preferred Stock are tendered for exchange
and not validly withdrawn, the Company would issue an amount of its shares of Common Stock not to exceed 135,000. The Company
owns 100% of the voting capital stock of M&amp;EC. If the Exchange Offer is consummated, holders of the M&amp;EC Series B Preferred
Stock would forfeit all rights of a holder of Series B Preferred Shares, including the right to receive quarterly cash dividends,
and the rights to the cumulative accrued and unpaid dividends with M&amp;EC Series B Preferred Stock in the amount of approximately
$1,011,000 as of April 1, 2018. M&amp;EC Board has never declared dividends on the Series B Preferred Stock and our credit facility
prohibits the payment of cash dividends without the lender&rsquo;s consent.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
shares of Company common stock to be issued in exchange for shares of M&amp;EC&rsquo;s Series B Preferred Stock will be issued
pursuant to an exemption from registration under the Securities Act of 1933, as amended, and, as a result, will be considered
restricted securities that have restrictions on transferability.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
discussion as to an exchange offer does not constitute an offer or an invitation by the Company to participate in the exchange
offer in any manner.</FONT></P>

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.6in; font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 2.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_009"></A>Management&rsquo;s
    Discussion and Analysis of Financial Condition and Results of Operations</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

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

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

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

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


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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">demand
    for our services;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">continue
    to focus on expansion into both commercial and international markets to increase revenues;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">reductions
    in the level of government funding in future years; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ability
    of our Medical Segment to fund its R&amp;D program;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">reducing
    operating costs;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">expect
    to meet our quarterly financial covenant requirements in the next twelve months;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">cash
    flow requirements;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">government
    funding for our services;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">may
    not have liquidity to repay debt if our lender accelerates payment of our borrowings;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    cash flows from operations and our available liquidity from our credit facility are sufficient to service our segments&rsquo;
    obligations for the next twelve months;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">manner
    in which the government will be required to spend funding to remediate federal sites;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">fund
    capital expenditures from cash from operations and/or financing;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">fund
    remediation expenditures for sites from funds generated from operations;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">compliance
    with environmental regulations; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">potential
    effect of being a PRP; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">anticipate
    cash flows to be generated from operations and partial release of restricted finite sinking funds by AIG will provide improvement
    to our working capital deficit;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">partial
    release of finite risk sinking funds by AIG in second half of 2018 as result of M&amp;EC closure; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">closure
    of M&amp;EC;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">working
    capital improvement; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">further
    reduce, delay or eliminate R&amp;D program if the Medical Segment is unable to raise the necessary capital; and</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">potential
    sites for violations of environmental laws and remediation of our facilities.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; width: 0.25in; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">general
    economic conditions;</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">material
    reduction in revenues;</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ability
    to meet PNC covenant requirements;</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to collect in a timely manner a material amount of receivables; </FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">increased
    competitive pressures; </FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to maintain and obtain required permits and approvals to conduct operations; </FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">public
    not accepting our new technology;</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to develop new and existing technologies in the conduct of operations;</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to maintain and obtain closure and operating insurance requirements;</FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to retain or renew certain required permits;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">discovery
    of additional contamination or expanded contamination at any of the sites or facilities leased or owned by us or our subsidiaries
    which would result in a material increase in remediation expenditures;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">delays
    at our third party disposal site can extend collection of our receivables greater than twelve months;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">refusal
    of third party disposal sites to accept our waste;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">changes
    in federal, state and local laws and regulations, especially environmental laws and regulations, or in interpretation of such;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">requirements
    to obtain permits for TSD activities or licensing requirements to handle low level radioactive materials are limited or lessened;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">potential
    increases in equipment, maintenance, operating or labor costs;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">management
    retention and development;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">financial
    valuation of intangible assets is substantially more/less than expected;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    requirement to use internally generated funds for purposes not presently anticipated;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to continue to be profitable on an annualized basis;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    of the Company to maintain the listing of its Common Stock on the NASDAQ;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">terminations
    of contracts with federal agencies or subcontracts involving federal agencies, or reduction in amount of waste delivered to
    the Company under the contracts or subcontracts; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">renegotiation
    of contracts involving the federal government;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">federal
    government&rsquo;s inability or failure to provide necessary funding to remediate contaminated federal sites;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">disposal
    expense accrual could prove to be inadequate in the event the waste requires re-treatment; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to raise capital on commercially reasonable terms;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to increase profitable revenue; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">lender
    refuses to waive non-compliance or revise our covenant so that we are in compliance; and</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#9679;</FONT></FONT></FONT></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">risk
    factors and other factors set forth in &ldquo;Special Note Regarding Forward-Looking Statements&rdquo; contained in the Company&rsquo;s
    2017 Form 10-K.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Revenue
decreased slightly by $49,000 or 0.4% to $12,658,000 for the three months ended March 31, 2018 from $12,707,000 for the corresponding
period of 2017. The decrease was primarily within our Treatment Segment where revenue decreased $1,075,000 or 10.7% primarily
due to lower waste volume. Our revenue for the first quarter of 2018 was impacted by the pending closure of our East Tennessee
Materials and Energy Corporation (&ldquo;M&amp;EC&rdquo;) facility (by June 2018) which generated revenues of approximately $3,379,000
in the first quarter of 2017 as compared to $56,000 in the first quarter of 2018 as we continue to transition waste shipments
and operational capabilities to our other Treatment Segment facilities, subject to customer requirements and regulatory approvals.
Revenue from our Services Segment increased by $1,026,000 or 38.4%. Gross profit increased $602,000 or 22.1% primarily due to
increased revenue in the Services Segment. Selling, General, and Administrative (&ldquo;SG&amp;A&rdquo;) expenses decreased $70,000
or 2.5% for the three months ended March 31, 2018 as compared to the corresponding period of 2017.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Business
Environment and Outlook </B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
Treatment and Services Segments&rsquo; business continues to be heavily dependent on services that we provide to governmental
clients directly as the contractor or indirectly as a subcontractor. We believe demand for our services will continue to be subject
to fluctuations due to a variety of factors beyond our control, including the current economic conditions and the manner in which
the government will be required to spend funding to remediate federal sites. In addition, our governmental contracts and subcontracts
relating to activities at governmental sites are generally subject to termination or renegotiation on 30 days notice at the government&rsquo;s
option. Significant reductions in the level of governmental funding or specifically mandated levels for different programs that
are important to our business could have a material adverse impact on our business, financial position, results of operations
and cash flows. As previously disclosed, our Medical Segment reduced its research and development (&ldquo;R&amp;D&rdquo;) activities
substantially due to the need for capital to fund such activities. Our Medical Segment continues to seek various sources in order
to raise this capital. We anticipate that our Medical Segment R&amp;D activities will be limited until the necessary capital is
obtained through its own credit facility or additional equity raise. If the Medical Segment is unable to raise the necessary capital,
the Medical Segment could be required to further reduce, delay or eliminate its R&amp;D program.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are continually reviewing operating costs and are committed to further reducing operating costs to bring them in line with revenue
levels, when needed. We continue to focus on expansion into both commercial and international markets to increase revenues in
our Treatment and Services Segments to offset the uncertainties of government spending in the United States of America.</FONT></P>

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


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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
reporting of financial results and pertinent discussions are tailored to three reportable segments: The Treatment, Services, and
Medical Segments. Our Medical Segment has not generated any revenue and all costs incurred are included within R&amp;D.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Summary
&ndash; Three Months Ended March 31, 2018 and 2017</B></FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: right; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="14" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Three Months Ended</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: right; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="14" STYLE="text-align: center; border-bottom: Black 1.5pt solid">March 31,</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid">Consolidated (amounts in thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">%</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">%</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 44%">Revenues</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">12,658</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; text-align: right">100.0</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">12,707</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; text-align: right">100.0</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Cost of good sold</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">9,337</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">73.8</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">9,988</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">78.6</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt">Gross profit</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">3,321</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">26.2</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,719</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">21.4</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Selling, general and administrative</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,780</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">22.0</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,850</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">22.4</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Research and development</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">232</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1.8</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">389</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">3.1</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Gain on disposal of property and equipment</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(8</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(.1</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#8213;</FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#8213;</FONT></FONT></TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Income (loss) from operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">317</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2.5</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">(520</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(4.1</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Interest income</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">49</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">.4</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">35</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">.3</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Interest expense</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(53</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(.4</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(100</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(.8</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Interest expense-financing fees</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(9</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(.1</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(9</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(.1</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Income (loss) from continuing operations before taxes</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">304</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2.4</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(594</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(4.7</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Income tax expense</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(51</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(.4</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(81</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(.6</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 2.5pt">Income (loss) from continuing operations</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">253</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">2.0</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">(675</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">)</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">(5.3</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">)</TD></TR>
</TABLE>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated
revenues decreased $49,000 for the three months ended March 31, 2018, compared to the three months ended March 31, 2017, as follows:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid">(In thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">% Revenue</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">% Revenue</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Change</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">% Change</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-decoration: underline">Treatment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="width: 34%; text-align: left; padding-left: 10pt">Government waste</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 8%; text-align: right">6,129</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 8%; text-align: right">48.4</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 8%; text-align: right">7,371</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 8%; text-align: right">58.0</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 8%; text-align: right">(1,242</TD><TD STYLE="width: 1%; text-align: left">)</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 8%; text-align: right">(16.8</TD><TD STYLE="width: 1%; text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="padding-left: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Hazardous/non-hazardous <SUP>(1)</SUP></FONT></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,236</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">9.8</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,334</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">10.5</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(98</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(7.3</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Other nuclear waste</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">1,594</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">12.6</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">1,329</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">10.5</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">265</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">19.9</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="padding-left: 20pt">Total</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">8,959</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">70.8</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">10,034</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">79.0</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(1,075</TD><TD STYLE="text-align: left">)</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(10.7</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-decoration: underline">Services</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Nuclear services</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">3,186</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">25.1</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">2,091</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">16.4</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">1,095</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">52.4</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-left: 10pt; padding-bottom: 1.5pt">Technical services</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">513</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">4.1</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">582</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">4.6</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(69</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(11.9</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="padding-left: 20pt; padding-bottom: 1.5pt">Total</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">3,699</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">29.2</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">2,673</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">21.0</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">1,026</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">38.4</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="padding-left: 20pt; padding-bottom: 2.5pt">Total</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">12,658</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">100.0</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">12,707</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">100.0</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">(49</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">)</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">(0.4</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">)</TD></TR>
</TABLE>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><SUP>(1)
</SUP>Includes wastes generated by government clients of $407,000 and $0 for the three month ended March 31, 2018 and the corresponding
period of 2017, respectively.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treatment
Segment revenue decreased $1,075,000 or 10.7 % for the three months ended March 31, 2018 over the same period in 2017. The revenue
decrease was primarily due to lower revenue generated from government clients due to lower waste volume. Our revenue for the first
quarter of 2018 was impacted by the pending closure of our M&amp;EC facility which generated revenues of approximately $3,379,000
in the first quarter of 2017 as compared to $56,000 in the first quarter of 2018 as we continue to transition waste shipments
and operational capabilities to our other Treatment Segment facilities, subject to customer requirements and regulatory approvals.
Services Segment revenue increased by $1,026,000 or 38.4% in the three months ended March 31, 2018 from the corresponding period
of 2017. Our Services Segment revenues are project based; as such, the scope, duration and completion of each project varies.
As a result, our Services Segment revenues are subject to differences relating to timing and project value.</FONT></P>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Cost
of Goods Sold</I></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cost
of goods sold decreased $651,000 for the quarter ended March 31, 2018, compared to the quarter ended March 31, 2017, as follows:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: right">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: right">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">%</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: right">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">%</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: right">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid">(In thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Revenue</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Revenue</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Change</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 30%">Treatment</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">6,179</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; text-align: right">69.0</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">7,347</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; text-align: right">73.2</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">(1,168</TD><TD STYLE="width: 1%; text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="padding-bottom: 1.5pt">Services</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">3,158</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">85.4</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">2,641</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">98.8</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">517</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="padding-left: 10pt; padding-bottom: 2.5pt">Total</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">9,337</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">73.8</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">9,988</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">78.6</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">(651</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">)</TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cost
of goods sold for the Treatment Segment decreased approximately $1,168,000 or 15.9% primarily due to lower revenue. Treatment
Segment variable costs decreased by approximately $438,000 primarily in disposal, transportation, material and supplies and lab
costs due to lower revenue. Our overall fixed costs were lower by approximately $730,000 resulting from the following: depreciation
expense was lower by approximately $768,000 due to the full depreciation of our M&amp;EC facility&rsquo;s tangible assets in 2017
resulting from the pending closure of the facility by June 2018; regulatory expenses were lower by $21,000; maintenance expense
was higher by $16,000; general expense was higher by approximately $23,000 in various categories; and salaries and payroll related
expenses were higher by approximately $20,000. Services Segment cost of goods sold increased $517,000 or 19.6% primarily due to
the increase in revenue as discussed above. The increase in cost of goods sold was primarily in salaries and payroll related,
travel, and outside services expenses totaling approximately $595,000. The overall higher costs were partially offset by lower
general expenses of approximately $65,000 in various categories and lower depreciation and amortization expenses of $13,000. Included
within cost of goods sold is depreciation and amortization expense of $353,000 and $1,134,000 for the three months ended March
31, 2018, and 2017, respectively.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Gross
profit for the quarter ended March 31, 2018 increased $602,000 over the corresponding period of 2017, as follows:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: right">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: right">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">%</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: right">&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">%</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: right">&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid">(In thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Revenue</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Revenue</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Change</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 30%">Treatment</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">2,780</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; text-align: right">31.0</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">2,687</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; text-align: right">26.8</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">93</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="padding-bottom: 1.5pt">Services</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">541</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">14.6</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">32</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">1.2</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">509</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="padding-left: 10pt; padding-bottom: 2.5pt">Total</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">3,321</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">26.2</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">2,719</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">21.4</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">602</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treatment
Segment gross profit increased by $93,000 and gross margin increased to 31.0% from 26.8% primarily due to revenue mix and the
reduction in our fixed costs. The increase in gross profit in the Services Segment of $509,000 and gross margin from 1.2% to 14.6%
was primarily due to the increase in revenue as discussed above. As discussed previously, our overall Services Segment gross margin
is impacted by our current projects which are competitively bid on and will therefore, have varying margin structures.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SG&amp;<FONT STYLE="text-transform: uppercase">A
</FONT>expenses decreased $70,000 for the three months ended March 31, 2018, as compared to the corresponding period for 2017,
as follows:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid">(In thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">%</P>
                                               <P STYLE="margin-top: 0; margin-bottom: 0">Revenue</P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">%</P>
                                               <P STYLE="margin-top: 0; margin-bottom: 0">Revenue</P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Change</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 30%">Administrative</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">1,225</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#8213;</FONT></FONT></TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">1,216</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; text-align: right"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#8213;</FONT></TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 10%; text-align: right">9</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD>Treatment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">922</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">10.3</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">896</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">8.9</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">26</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="padding-bottom: 1.5pt">Services</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">633</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">17.1</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">738</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">27.6</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(105</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="padding-left: 10pt; padding-bottom: 2.5pt">Total</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">2,780</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">22.0</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">2,850</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">22.4</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">(70</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">)</TD></TR>
</TABLE>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
lower SG&amp;A costs were primarily within the Services Segment. Services Segment SG&amp;A was lower primarily due to the following:
outside services expenses were lower by approximately $26,000 resulting from fewer consulting/legal matters; salaries and payroll
related expenses were lower by approximately $47,000 as in the prior year, our Services Segment incurred higher salary expenses
related to bids and proposal work for potential projects; travel expenses were lower by $21,000 and general expenses were lower
by approximately $11,000 in various categories. Treatment Segment SG&amp;A was higher primarily due to the following: higher outside
services of $47,000 due to more consulting/legal matters; higher general expenses of approximately $71,000 in various categories;
higher travel expenses of $10,000; and lower salaries and payroll related expenses of approximately $102,000. The increase in
administrative SG&amp;A was primarily due to the following: higher stock-based compensation expenses of approximately $26,000
resulting from options granted to our executive officers in July 2017 and options granted to certain of our employees in October
2017; higher salaries and payroll related expenses by approximately $18,000 ; lower outside services expenses by approximately
$26,000 resulting from fewer consulting/business/legal matters; and lower general expenses of approximately $9,000 in various
categories. Included in SG&amp;A expenses is depreciation and amortization expense of $19,000 and $21,000 for the three months
ended March 31, 2018 and 2017, respectively.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">R&amp;D
expenses decreased $157,000 for the three months ended March 31, 2018, as compared to the corresponding period for 2017, as follows:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 80%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid">(In thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2018</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">2017</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Change</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 52%">Administrative</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 12%; text-align: right">18</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 12%; text-align: right">8</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 12%; text-align: right">10</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD>Treatment</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">114</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">181</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(67</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD>Services</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#8213;</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#8213;</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&#8213;</FONT></FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">PF Medical</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">100</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">200</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(100</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="padding-left: 10pt; padding-bottom: 2.5pt">Total</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">232</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">389</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">(157</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">)</TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">R&amp;D
costs consist primarily of employee salaries and benefits, laboratory costs, third party fees, and other related costs associated
with the development of new technologies and technological enhancement of new potential waste treatment processes. As disclosed
previously, our Medical Segment has ceased a substantial portion of its R&amp;D activities due to the need for substantial capital
to fund such activities and we anticipate that our Medical Segment will not resume any substantial R&amp;D activities until it
obtains the necessary funding.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Interest
expense decreased approximately $47,000 in the first quarter of 2018 as compared to the corresponding period of 2017 primarily
due to lower interest expense from our declining term loan balance and lower average revolver loan balance outstanding.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&rsquo;s discontinued operations consist of all our subsidiaries included in our Industrial Segment: (1) subsidiaries divested
in 2011 and prior, (2) two previously closed locations, and (3) our PFSG facility, which is currently undergoing closure, subject
to regulatory approval.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
had net losses of $157,000 and $131,000 for our discontinued operations for the three months ended March 31, 2018 and 2017, respectively
(net of taxes of $0 for each period). The losses were primarily due to costs incurred in the administration and continued monitoring
of our discontinued operations. Our discontinued operations had no revenues for each of the periods noted above.</FONT></P>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Liquidity
and Capital Resources </B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
cash flow requirements during the three months ended March 31, 2018 were primarily financed by our operations and credit facility
availability. Our cash flow requirements for the next twelve months will consist primarily of general working capital needs, scheduled
principal payments on our debt obligations, remediation projects, planned capital expenditures, and closure spending requirements
of approximately $1,864,000 in connection with the pending closure of our M&amp;EC facility. We plan to fund these requirements
from our operations and our credit facility availability. Additionally, as a result of the M&amp;EC facility closure, we expect
to receive during the second half of 2018, a partial release of approximately $5,000,000 of the $15,726,000 restricted finite
risk sinking funds held by American International Group (&ldquo;AIG&rdquo;) as collateral under the financial assurance policy
dated June 2003 that we currently have with AIG. This partial release of finite risk sinking funds is subject to approval from
AIG and the appropriate regulators and when released, we believe will further enhance our liquidity. We continue to explore all
sources of increasing revenue. We are continually reviewing operating costs and are committed to further reducing operating costs
to bring them in line with revenue levels, when necessary. Although there are no assurances, we believe that our cash flows from
operations and our available liquidity from our credit facility are sufficient to fund our operations for the next twelve months.
Additionally, the partial release of the finite risk sinking funds that we expect to receive during the second half of 2018 as
a result of the M&amp;EC facility closure as discussed above will further provide additional funding for our operations as needed.
As previously disclosed, our Medical Segment substantially reduced its R&amp;D activities due to the need for capital to fund
such activities. We anticipate that our Medical Segment will not resume full R&amp;D activities until it obtains the necessary
funding through obtaining its own credit facility or additional equity raise. Our Medical Segment continues to seek various sources
of potential funding. If the Medical Segment is unable to raise the necessary capital, the Medical Segment could be required to
further reduce, delay or eliminate its R&amp;D program.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table reflects the cash flow activities during the first three months of 2018:</FONT></P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 87%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid">(In thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 80%; text-align: left">Cash provided by operating activities of continuing operations</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">2,615</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Cash used in operating activities of discontinued operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(181</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Cash used in investing activities of continuing operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(290</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Cash provided by investing activities of discontinued operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">17</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Cash used in financing activities of continuing operations</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">(304</TD><TD STYLE="text-align: left">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Effect of exchange rate changes in cash</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 1.5pt solid">&nbsp;</TD><TD STYLE="text-align: right; border-bottom: Black 1.5pt solid">(4</TD><TD STYLE="text-align: left; padding-bottom: 1.5pt">)</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 2.5pt">Increase in cash</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="text-align: left; border-bottom: Black 2.5pt double">$</TD><TD STYLE="text-align: right; border-bottom: Black 2.5pt double">1,853</TD><TD STYLE="text-align: left; padding-bottom: 2.5pt">&nbsp;</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 31.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2018, we were in a positive cash position and no revolving credit balance. At March 31, 2018, we had cash on hand of
approximately $2,916,000 which includes account balances for our foreign subsidiaries totaling approximately $774,000.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Accounts
receivable, net of allowances for doubtful accounts, totaled $4,762,000 at March 31, 2018, a decrease of $3,178,000 from the December
31, 2017 balance of $7,940,000. The decrease was primarily due to increased accounts receivable collections. We provide a variety
of payment terms to our customers; therefore, our accounts receivable are impacted by these terms and the related timing of accounts
receivable collections.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Accounts
payable, totaled $3,616,000 at March 31, 2018, an increase of $79,000 from the December 31, 2017 balance of $3,537,000. Our accounts
payable are impacted by the timing of payment as we are continually managing payment terms with our vendors to maximize our cash
position throughout all segments.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Disposal/transportation
accrual at March 31, 2018, totaled $1,478,000, a decrease of $593,000 over the December 31, 2017 balance of $2,071,000. Our disposal
accrual can vary based on revenue mix and the timing of waste shipments for final disposal. During 2018, we shipped more waste
for disposal.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
had a working capital deficit of $2,472,000 (which included working capital of our discontinued operations) at March 31, 2018
as compared to a working capital deficit of $2,268,000 at December 31, 2017. Our working capital was primarily impacted by the
decrease in our accounts receivables where our accounts receivable collections outpaced our billings. We anticipate that cash
flows to be generated from our operations and the partial release of the restricted finite sinking funds by AIG which we anticipate
to receive upon the closure of our M&amp;EC facility as discussed above, will provide improvement to our working capital deficit.</FONT></P>

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


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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
the three months ended March 31, 2018, our purchases of capital equipment totaled approximately $248,000. These expenditures were
primarily for improvements in our Treatment Segment. These capital expenditures were funded by cash from operations. We have budgeted
approximately $1,000,000 for 2018 capital expenditures for our Treatment and Services Segments to maintain operations and regulatory
compliance requirements. On March 7, 2018, our Board approved an additional $1,000,000 in capital spending for footprint expansion
for one of our Treatment Segment facilities. Certain of these budgeted projects may either be delayed until later years or deferred
altogether. We have traditionally incurred actual capital spending totals for a given year at less than the initial budgeted amount.
We plan to fund our capital expenditures from cash from operations and/or financing. The initiation and timing of projects are
also determined by financing alternatives or funds available for such capital projects.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
entered into an Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated October 31, 2011 (&ldquo;Amended
Loan Agreement&rdquo;), with PNC National Association (&ldquo;PNC&rdquo;), acting as agent and lender. The Amended Loan Agreement,
as subsequently amended (&ldquo;Revised Loan Agreement&rdquo;), provides us with the following credit facility with a maturity
date of March 24, 2021: (a) up to $12,000,000 revolving credit (&ldquo;revolving credit&rdquo;) and (b) a term loan (&ldquo;term
loan&rdquo;) of approximately $6,100,000, which requires monthly installments of approximately $101,600 (based on a seven-year
amortization). The maximum that we can borrow under the revolving credit is based on a percentage of eligible receivables (as
defined) at any one time reduced by outstanding standby letters of credit and borrowing reductions that our lender may impose
from time to time.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
the Revised Loan Agreement, we have the option of paying an annual rate of interest due on the revolving credit at prime plus
2% or London Inter Bank Offer Rate (&ldquo;LIBOR&rdquo;) plus 3% and the term loan at prime plus 2.5% or LIBOR plus 3.5%.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the Revised Loan Agreement, we may terminate the Revised Loan Agreement, upon 90 days&rsquo; prior written notice upon payment
in full of our obligations under the Revised Loan Agreement. We agreed to pay PNC 1.0% of the total financing had we paid off
our obligations on or before March 23, 2017, .50% of the total financing had we paid off our obligations after March 23, 2017
but prior to or on March 23, 2018, and .25% of the total financing if we pay off our obligations after March 23, 2018 but prior
to or on March 23, 2019. No early termination fee shall apply if we pay off our obligations after March 23, 2019.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2018, the borrowing availability under our revolving credit was $2,823,000, based on our eligible receivables and includes
an indefinite reduction of borrowing availability of $2,000,000 that our lender has imposed. Our borrowing availability under
our revolving credit was also reduced by outstanding standby letters of credit totaling approximately $2,660,000.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have had discussions with our lender as to the removal of the $2,000,000 reduction in borrowing availability discussed above.
Our lender has advised us that they will be reducing the $2,000,000 reduction in borrowing availability to $1,000,000 during the
first half of 2018, subject to receipt of appropriate approvals by the lender and execution of documentation, and would consider
removal of the remaining $1,000,000 reduction in borrowing availability depending on our results during 2018.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
credit facility with PNC contains certain financial covenants, along with customary representations and warranties. A breach of
any of these financial covenants, unless waived by PNC, could result in a default under our credit facility allowing our lender
to immediately require the repayment of all outstanding debt under our credit facility and terminate all commitments to extend
further credit. The following table details the quarterly financial covenant requirements under our credit facility at March 31,
2018.</FONT></P>

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


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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 70%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: right">&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">Quarterly</TD><TD>&nbsp;</TD><TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center">1st Quarter</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid">(Dollars in thousands)</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Requirement</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid">Actual</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Senior Credit Facility</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-left: 10pt">Fixed charge coverage ratio</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.15:1</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.22:1</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 60%; text-align: left; padding-left: 10pt">Minimum tangible adjusted net worth</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">26,000</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 16%; text-align: right">27,038</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
</TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
met our quarterly financial covenants in the first quarter of 2018 and we expect to meet these quarterly financial covenant requirements
in the next twelve months. If we fail to meet any of these quarterly financial covenant requirements as noted above and our lender
does not waive the non-compliance or revise our covenant so that we are in compliance, our lender could accelerate the repayment
of borrowings under our credit facility. In the event that our lender accelerates the payment of our borrowings, we may not have
sufficient liquidity to repay our debt under our credit facility and other indebtedness.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>M&amp;EC
Series B Preferred Stock</B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
April 24, 2018, the Company announced a private exchange offer (&ldquo;Exchange Offer&rdquo;), to all holders of the M&amp;EC
Series B Preferred Stock, to exchange, for every share of Series B Preferred Stock tendered, (a) 0.1050805 shares of newly issued
common stock of the Company, par value $.001 per share (&ldquo;Common Stock&rdquo;), and (b) cash in lieu of fractional shares
of Common Stock that would otherwise be issuable to the tendering holder of Series B Preferred Stock, in an amount equal to such
fractional share of Common Stock multiplied by the closing price per share of the Common Stock on the last trading day immediately
preceding the expiration date of the Exchange Offer. The Exchange Offer is being made on an all-or-none basis, for all 1,284,730
shares of Series B Preferred Stock outstanding and has an expiration date of May 30, 2018. Assuming all currently outstanding
shares of Series B Preferred Stock are tendered for exchange and not validly withdrawn, the Company would issue an amount of its
shares of Common Stock not to exceed 135,000. The Company owns 100% of the voting capital stock of M&amp;EC. If the Exchange Offer
is consummated, the holders of the M&amp;EC Series B Preferred Stock would forfeit all rights of a holder of Series B Preferred
Shares, including the right to receive quarterly cash dividends and the rights to the accrued and unpaid cumulative dividends
on the M&amp;EC Series B Preferred Stock, which the Company has accrued since the issuance of the Series B Preferred Stock in
the amount of approximately $1,011,000 as of April 1, 2018. Although dividends on the M&amp;EC Series B Preferred Stock are cumulative,
such dividends are payable if, when, and as declared by the Board of M&amp;EC. M&amp;EC Board has never declared dividends on
the Series B Preferred Stock and our credit facility prohibits the payment of cash dividends without our lender&rsquo;s consent.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
shares of Company common stock to be issued in exchange for shares of M&amp;EC&rsquo;s Series B Preferred Stock will be issued
pursuant to an exemption from registration under the Securities Act of 1933, as amended, and, as a result, will be considered
restricted securities that have restrictions on transferability.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
above paragraphs as to the exchange offer do not constitute an offer or an invitation by us to participate in the exchange offer
in any manner.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Off
Balance Sheet Arrangements</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">From
time to time, we are required to post standby letters of credit and various bonds to support contractual obligations to customers
and other obligations, including facility closures. At March 31, 2018, the total amount of standby letters of credit outstanding
totaled approximately $2,660,000 and the total amount of bonds outstanding totaled approximately $8,767,000. We also provide closure
and post-closure requirements through a financial assurance policy for certain of our Treatment Segment facilities through AIG.
At March 31, 2018, the closure and post-closure requirements for these facilities were approximately $29,911,000.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Critical
Accounting Policies and Estimates</B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
adopted Accounting Standards Update (&ldquo;ASU&rdquo;) No. 2014-09, &ldquo;Revenue from Contracts with Customers&rdquo; followed
by a series of related accounting standard updates (collectively referred to as &ldquo;Topic 606&rdquo;) effective January 1,
2018. The adoption of Topic 606 did not materially impact our revenue recognition model. There were no significant changes in
our accounting policies or critical accounting estimates that are discussed in our Annual Report on Form 10-K for the year ended
December 31, 2017.</FONT></P>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Known
Trends and Uncertainties</B></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Significant
Customers</I>. Our Treatment and Services Segments have significant relationships with the U.S federal government, and continue
to enter into contracts, directly as the prime contractor or indirectly for others as a subcontractor, with the federal government.
The U.S Department of Energy (&ldquo;DOE&rdquo;) and U.S. Department of Defense (&ldquo;DOD&rdquo;) represent major customers
for our Treatment Segment and Services Segments. The contracts that we are a party to with the federal government or with others
as a subcontractor to the federal government generally provide that the government may terminate or renegotiate the contracts
on 30 days notice, at the government&rsquo;s election. Our inability to continue under existing contracts that we have with the
federal government (directly or indirectly as a subcontractor) or significant reductions in the level of governmental funding
in any given year could have a material adverse impact on our operations and financial condition.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
performed services relating to waste generated by government clients (includes U.S federal and state), either directly as a prime
contractor or indirectly for others as a subcontractor to government entities, representing approximately $9,654,000 or 76.3%
of our total revenue during the three months ended March 31, 2018, as compared to $9,439,000 or 74.3% of our total revenue during
the corresponding period of 2017.</FONT></P>

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 381.75pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
subsidiaries where remediation expenditures will be made are at three sites within our discontinued operations. While no assurances
can be made that we will be able to do so, we expect to fund the expenses to remediate these sites from funds generated from operations.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2018, we had total accrued environmental remediation liabilities of $848,000, of which $619,000 is recorded as a current
liability, which reflects a decrease of $23,000 from the December 31, 2017 balance of $871,000. The decrease of $23,000 represents
payments on remediation projects at our Perma-Fix of Dayton, Inc. subsidiary.</FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.6in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
3.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_010"></A>Quantitative
    and Qualitative Disclosures about Market Risks</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
required for smaller reporting companies.</FONT></P>

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


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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 9%; padding-right: -1.5pt; padding-left: 1.5pt; text-indent: 13.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
    4.</B></FONT></TD>
    <TD STYLE="width: 91%; padding-right: 1.5pt; padding-left: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_011"></A>Controls
    and Procedures</B></FONT></TD></TR>
</TABLE>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-family: Times New Roman, Times, Serif">
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 91%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Evaluation
    of disclosure controls, and procedures.</I></FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
        maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our
        periodic reports filed with the Securities and Exchange Commission is recorded, processed, summarized and reported within
        the time periods specified in the rules and forms of the Securities and Exchange Commission and that such information
        is accumulated and communicated to our management. As of the end of the period covered by this report, we carried out
        an evaluation with the participation of our Principal Executive Officer and Principal Financial Officer. Based on this
        recent assessment, our Principal Executive Officer and Principal Financial Officer have concluded that our disclosure
        controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended)
        were effective as of March 31, 2018.</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Changes
    in internal control over financial reporting.</I></FONT></TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Effective
    January 1, 2018, we adopted ASU 2014-09, Revenue from Contracts with Customers (Topic 606) and a series of related accounting
    standard updates (collectively referred to as &ldquo;Topic 606&rdquo;). Although the adoption of the new revenue standards
    had no significant impact on our financial position, results of operations, or cash flows, we did implement changes to our
    controls related to revenue. These included the development of new policies and controls based on the five-step model provided
    in Topic 606, enhanced contract review requirements, and other ongoing monitoring activities. These controls were developed
    to provide assurance at a reasonable level for the fair presentation of our condensed consolidated financial statements and
    related disclosures. There was no other change in our internal control over financial reporting (as defined in Rules 13a-15(f)
    and 15d-15(f) under the Exchange Act) during our most recently completed fiscal quarter that has materially affected, or is
    reasonably likely to materially affect, our internal control over financial reporting.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_012"></A>PART
II &ndash; OTHER INFORMATION</B></FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.6in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
1.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_013"></A>Legal
    Proceedings</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">There
are no additional material legal proceedings pending against us and/or our subsidiaries not previously reported by us in Item
3 of our Form 10-K for the year ended December 31, 2017, which is incorporated herein by reference.</FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.6in; text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
1A.</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_014"></A>Risk
    Factors</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
has been no other material change from the risk factors previously disclosed in our Form 10-K for the year ended December 31,
2017.</FONT></P>

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Item 6.</B></FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B><U><A NAME="a_015"></A>Exhibits</U> </B></FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>&nbsp;</B></FONT></TD></TR>
<TR>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">(a)</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B><U>Exhibits</U></B></FONT></TD></TR>
<TR>
    <TD STYLE="width: 0.6in; text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 0.6in; text-align: justify"><FONT STYLE="font-size: 10pt">10.1</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><A HREF="http://www.sec.gov/Archives/edgar/data/891532/000149315218000918/ex99-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">2018 Incentive Compensation Plan for Chief Executive Officer, effective January 1, 2018, as incorporated by reference from Exhibit 99.1 to the Company&rsquo;s Form 8-K filed on January 23, 2018.</FONT></A></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">10.2</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><A HREF="http://www.sec.gov/Archives/edgar/data/891532/000149315218000918/ex99-2.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">2018 Incentive Compensation Plan for Chief Financial Officer, effective January 1, 2018, as incorporated by reference from Exhibit 99.2 to the Company&rsquo;s Form 8-K filed on January 23, 2018.</FONT></A></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">10.3</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><A HREF="http://www.sec.gov/Archives/edgar/data/891532/000149315218000918/ex99-3.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">2018 Incentive Compensation Plan for Executive Vice President of Strategic Initiatives, effective January 1, 2018, as incorporated by reference from Exhibit 99.3 to the Company&rsquo;s Form 8-K filed on January 23, 2018.</FONT></A></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">31.1</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt"><A HREF="ex31-1.htm">Certification by Dr. Louis F. Centofanti, Chief Executive Officer of the Company pursuant to Rule 13a-14(a) or 15d-14(a).</A></FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">31.2</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt"><A HREF="ex31-2.htm">Certification by Ben Naccarato, Chief Financial Officer of the Company pursuant to Rule 13a-14(a) or 15d-14(a)</A>.</FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">32.1</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt"><A HREF="ex32-1.htm">Certification by Dr. Louis F. Centofanti, Chief Executive Officer of the Company furnished pursuant to 18 U.S.C. Section 1350.</A> </FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">32.2</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt"><A HREF="ex32-2.htm">Certification by Ben Naccarato, Chief Financial Officer of the Company furnished pursuant to 18 U.S.C. Section 1350.</A></FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">101.INS</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">XBRL Instance Document*</FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">101.SCH</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">XBRL Taxonomy Extension Schema Document*</FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">101.CAL</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">XBRL Taxonomy Extension Calculation Linkbase Document*</FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">101.DEF</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">XBRL Taxonomy Extension Definition Linkbase Document*</FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">101.LAB</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">XBRL Taxonomy Extension Labels Linkbase Document*</FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">101.PRE</FONT></TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">XBRL Taxonomy Extension Presentation Linkbase Document*</FONT></TD></TR>
<TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">* Pursuant to Rule 406T of Regulation S-T, the Interactive Data File in Exhibit 101 hereto are deemed not filed or part of a registration statement or prospectus for purposes of Section 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purpose of Section 18 of the Securities Exchange Act of 1934, as amended, and otherwise are not subject to liability under those sections.</FONT></TD></TR>
</TABLE>


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




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

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


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

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

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

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERMA-FIX
    ENVIRONMENTAL SERVICES</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 50%; font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
    May 10, 2018</FONT></TD>
    <TD STYLE="width: 3%; font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="width: 47%; border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Mark Duff</I></FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Mark
        Duff</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">President
        and Chief (Principal) Executive Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
    May 10, 2018</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:
    </FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Ben Naccarato</I></FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ben Naccarato</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief (Principal) Financial Officer </FONT></TD></TR>
</TABLE>
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<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>ex31-1.htm
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<P STYLE="margin: 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

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

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">I
    have reviewed this quarterly report on Form 10-Q of Perma-Fix Environmental Services, Inc.;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
    on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
    to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect
    to the period covered by this report; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
    on my knowledge, the financial statements, and other financial information included in this report, fairly present in all
    material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods
    presented in this report; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    registrant&rsquo;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and
    procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined
    in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.5in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Designed
    such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,
    to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to
    us by others within those entities, particularly during the period in which this report is being prepared;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Designed
    such internal control over financial reporting, or caused such internal control over financial reporting to be designed under
    our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial
    statements for external purposes in accordance with generally accepted accounting principles;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">c)</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Evaluated
    the effectiveness of the registrant&rsquo;s disclosure controls and procedures and presented in this report our conclusions
    about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based
    on such evaluation; and</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">d)</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Disclosed
    in this report any change in the registrant&rsquo;s internal control over financial reporting that occurred during the registrant&rsquo;s
    most recent fiscal quarter (the registrant&rsquo;s fourth fiscal quarter in the case of an annual report) that has materially
    affected, or is reasonably likely to materially affect, the registrant&rsquo;s internal control over financial reporting;
    and</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

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    <TD STYLE="width: 52%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
    May 10, 2018</FONT></TD>
    <TD STYLE="width: 48%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="margin-top: 0; margin-bottom: 0; font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>
                                                         <P STYLE="margin-top: 0; margin-bottom: 0; font-family: Times New Roman, Times, Serif"></P></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Mark Duff</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mark
    Duff</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">President
    and Chief</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Executive
Officer</FONT></P>

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


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<TYPE>EX-31.2
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<P STYLE="margin: 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>EXHIBIT 31.2 </B></P>



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

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

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

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

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.25in">&nbsp;</TD>
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">I
    have reviewed this quarterly report on Form 10-Q of Perma-Fix Environmental Services, Inc.;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD>&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD>&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
    on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
    to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect
    to the period covered by this report; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD>&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD>&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
    on my knowledge, the financial statements, and other financial information included in this report, fairly present in all
    material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods
    presented in this report; </FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD>&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD>&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    registrant&rsquo;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and
    procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined
    in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 0.5in; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="width: 0.25in; font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Designed
    such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,
    to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to
    us by others within those entities, particularly during the period in which this report is being prepared;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Designed
    such internal control over financial reporting, or caused such internal control over financial reporting to be designed under
    our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial
    statements for external purposes in accordance with generally accepted accounting principles;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">c)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Evaluated
    the effectiveness of the registrant&rsquo;s disclosure controls and procedures and presented in this report our conclusions
    about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based
    on such evaluation; and</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">d)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Disclosed
    in this report any change in the registrant&rsquo;s internal control over financial reporting that occurred during the registrant&rsquo;s
    most recent fiscal quarter (the registrant&rsquo;s fourth fiscal quarter in the case of an annual report) that has materially
    affected, or is reasonably likely to materially affect, the registrant&rsquo;s internal control over financial reporting;
    and</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 50%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
    May 10, 2018</FONT></TD>
    <TD STYLE="width: 50%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Ben Naccarato</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ben
    Naccarato</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Vice
    President and</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
    Financial Officer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CERTIFICATION
PURSUANT TO</B></FONT><FONT STYLE="font-size: 10pt"><BR>
<FONT STYLE="font-family: Times New Roman, Times, Serif"><B>18 U.S.C. SECTION 1350,</B></FONT><BR>
<FONT STYLE="font-family: Times New Roman, Times, Serif"><B>AS ADOPTED PURSUANT TO SECTION 906</B></FONT><BR>
<FONT STYLE="font-family: Times New Roman, Times, Serif"><B>OF THE SARBANES-OXLEY ACT OF 2002</B></FONT></FONT></P>

<P STYLE="height: 4pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-right: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with the Quarterly Report of Perma-Fix Environmental Services, Inc. (&ldquo;PESI&rdquo;) on Form 10-Q for the quarter
ended March 31, 2018, as filed with the Securities and Exchange Commission on the date hereof (the &ldquo;Form 10-Q&rdquo;), I,
Mark Duff, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. &sect;1350, as adopted pursuant
to &sect;906 of the Sarbanes-Oxley Act of 2002, that:</FONT></P>

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

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

<P STYLE="height: 4pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-right: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dated:
May 10, 2017</FONT></P>

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

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

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

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


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


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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CERTIFICATION
PURSUANT TO</B><BR>
<B>18 U.S.C. SECTION 1350,</B><BR>
<B>AS ADOPTED PURSUANT TO SECTION 906</B><BR>
<B>OF THE SARBANES-OXLEY ACT OF 2002</B></FONT></P>

<P STYLE="height: 4pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-right: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with the Annual Report of Perma-Fix Environmental Services, Inc. (&ldquo;PESI&rdquo;) on Form 10-Q for the quarter
ended March 31, 2018, as filed with the Securities and Exchange Commission on the date hereof (the &ldquo;Form 10-Q&rdquo;), I,
Ben Naccarato, Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. &sect;1350, as adopted
pursuant to &sect;906 of the Sarbanes-Oxley Act of 2002, that:</FONT></P>

<P STYLE="height: 4pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-right: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

<P STYLE="height: 4pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-right: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dated:
May 10, 2018</FONT></P>

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

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

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

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


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    <us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit contextRef="From2018-01-01to2018-03-31" unitRef="USDPShares" decimals="INF">2.79</us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit>
    <us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit contextRef="From2017-01-01to2017-03-31" unitRef="USDPShares" decimals="INF">2.79</us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit>
    <us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit contextRef="From2018-01-01to2018-03-31" unitRef="USDPShares" decimals="INF">13.35</us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit>
    <us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit contextRef="From2017-01-01to2017-03-31" unitRef="USDPShares" decimals="INF">14.75</us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit>
    <us-gaap:IncomeLossFromContinuingOperations contextRef="From2018-01-01to2018-03-31" unitRef="USD" decimals="-3">293000</us-gaap:IncomeLossFromContinuingOperations>
    <us-gaap:IncomeLossFromContinuingOperations contextRef="From2017-01-01to2017-03-31" unitRef="USD" decimals="-3">-596000</us-gaap:IncomeLossFromContinuingOperations>
    <us-gaap:EarningsPerShareBasic contextRef="From2018-01-01to2018-03-31" unitRef="USDPShares" decimals="INF">0.01</us-gaap:EarningsPerShareBasic>
    <us-gaap:EarningsPerShareBasic contextRef="From2017-01-01to2017-03-31" unitRef="USDPShares" decimals="INF">-.06</us-gaap:EarningsPerShareBasic>
    <us-gaap:EarningsPerShareDiluted contextRef="From2018-01-01to2018-03-31" unitRef="USDPShares" decimals="INF">0.01</us-gaap:EarningsPerShareDiluted>
    <us-gaap:EarningsPerShareDiluted contextRef="From2017-01-01to2017-03-31" unitRef="USDPShares" decimals="INF">-.06</us-gaap:EarningsPerShareDiluted>
    <us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements contextRef="From2018-01-01to2018-03-31" unitRef="Shares" decimals="INF">26000</us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements>
    <us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements contextRef="From2017-01-01to2017-03-31" unitRef="Shares" xsi:nil="true" />
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount contextRef="From2018-01-01to2018-03-31" unitRef="Shares" decimals="INF">168000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount contextRef="From2017-01-01to2017-03-31" unitRef="Shares" decimals="INF">205000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:DebtInstrumentMaturityDate contextRef="From2011-10-30to2011-10-31_us-gaap_RevolvingCreditFacilityMember_custom_RevisedLoanAgreementMember_custom_PNCBankMember">2021-03-24</us-gaap:DebtInstrumentMaturityDate>
    <us-gaap:DebtInstrumentMaturityDate contextRef="From2018-01-01to2018-03-31_custom_RevolvingCreditMember">2021-03-24</us-gaap:DebtInstrumentMaturityDate>
    <us-gaap:DebtInstrumentMaturityDate contextRef="From2018-01-01to2018-03-31_custom_TermLoanMember">2021-03-24</us-gaap:DebtInstrumentMaturityDate>
    <us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity contextRef="AsOf2011-10-31_us-gaap_RevolvingCreditFacilityMember_custom_RevisedLoanAgreementMember_custom_PNCBankMember" unitRef="USD" decimals="0">12000000</us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity>
    <us-gaap:LongTermDebt contextRef="AsOf2017-12-31_custom_TermLoanMember" unitRef="USD" id="Foot-10-0" decimals="-3">3847000</us-gaap:LongTermDebt>
    <us-gaap:LongTermDebt contextRef="AsOf2017-12-31_custom_RevolvingCreditMember" unitRef="USD" id="Foot-11-0" xsi:nil="true" />
    <us-gaap:LongTermDebt contextRef="AsOf2018-03-31_custom_TermLoanMember" unitRef="USD" id="Foot-10-1" decimals="-3">3551000</us-gaap:LongTermDebt>
    <us-gaap:LongTermDebt contextRef="AsOf2018-03-31_custom_RevolvingCreditMember" unitRef="USD" id="Foot-11-1" xsi:nil="true" />
    <us-gaap:LongTermDebt contextRef="AsOf2011-10-31_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_TermLoanMember" unitRef="USD" decimals="0">6100000</us-gaap:LongTermDebt>
    <us-gaap:DebtInstrumentPeriodicPaymentPrincipal contextRef="From2011-10-30to2011-10-31_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_TermLoanMember" unitRef="USD" decimals="0">101600</us-gaap:DebtInstrumentPeriodicPaymentPrincipal>
    <us-gaap:DebtInstrumentPeriodicPaymentPrincipal contextRef="From2018-01-01to2018-03-31_custom_TermLoanMember" unitRef="USD" decimals="-3">102000</us-gaap:DebtInstrumentPeriodicPaymentPrincipal>
    <us-gaap:DebtInstrumentPeriodicPaymentPrincipal contextRef="From2017-01-01to2017-12-31_custom_TermLoanMember375472375" unitRef="USD" decimals="-3">102000</us-gaap:DebtInstrumentPeriodicPaymentPrincipal>
    <PESI:NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan contextRef="From2011-10-30to2011-10-31_custom_PNCBankMember_custom_TermLoanMember">P7Y</PESI:NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan>
    <us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 contextRef="From2011-10-30to2011-10-31_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_TermLoanMember_us-gaap_PrimeRateMember" unitRef="Pure" decimals="INF">0.025</us-gaap:DebtInstrumentBasisSpreadOnVariableRate1>
    <us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 contextRef="From2011-10-30to2011-10-31_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_TermLoanMember_us-gaap_LondonInterbankOfferedRateLIBORMember" unitRef="Pure" decimals="INF">0.035</us-gaap:DebtInstrumentBasisSpreadOnVariableRate1>
    <us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 contextRef="From2011-10-30to2011-10-31_us-gaap_RevolvingCreditFacilityMember_custom_RevisedLoanAgreementMember_custom_PNCBankMember_us-gaap_PrimeRateMember" unitRef="Pure" decimals="INF">0.02</us-gaap:DebtInstrumentBasisSpreadOnVariableRate1>
    <us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 contextRef="From2011-10-30to2011-10-31_us-gaap_RevolvingCreditFacilityMember_custom_RevisedLoanAgreementMember_custom_PNCBankMember_us-gaap_LondonInterbankOfferedRateLIBORMember" unitRef="Pure" decimals="INF">0.03</us-gaap:DebtInstrumentBasisSpreadOnVariableRate1>
    <PESI:DebtInstrumentTerminationNotice contextRef="From2011-10-30to2011-10-31_custom_RevisedLoanAgreementMember_custom_PNCBankMember">P90D</PESI:DebtInstrumentTerminationNotice>
    <PESI:DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations contextRef="AsOf2011-10-31_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_AfterMarch232017ButPriorToOrOnMarch232018Member" unitRef="Pure" decimals="INF">0.0050</PESI:DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations>
    <PESI:DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations contextRef="AsOf2011-10-31_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_AfterMarch232018ButPriorToOrOnMarch232019Member" unitRef="Pure" decimals="INF">0.0025</PESI:DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations>
    <PESI:DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations contextRef="AsOf2011-10-31_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_AfterMarch232019Member" unitRef="Pure" decimals="INF">0.000</PESI:DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations>
    <PESI:DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations contextRef="AsOf2011-10-31_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_OnOrBeforeMarch232017Member" unitRef="Pure" decimals="INF">0.010</PESI:DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations>
    <us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity contextRef="AsOf2018-03-31_us-gaap_RevolvingCreditFacilityMember_custom_PNCBankMember" unitRef="USD" decimals="0">2823000</us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity>
    <us-gaap:LongTermDebtAndCapitalLeaseObligations contextRef="AsOf2017-12-31" unitRef="USD" decimals="-3">3847000</us-gaap:LongTermDebtAndCapitalLeaseObligations>
    <us-gaap:LongTermDebtAndCapitalLeaseObligations contextRef="AsOf2018-03-31" unitRef="USD" decimals="-3">3551000</us-gaap:LongTermDebtAndCapitalLeaseObligations>
    <us-gaap:LongTermDebtCurrent contextRef="AsOf2017-12-31" unitRef="USD" decimals="-3">1184000</us-gaap:LongTermDebtCurrent>
    <us-gaap:LongTermDebtCurrent contextRef="AsOf2018-03-31" unitRef="USD" decimals="-3">1184000</us-gaap:LongTermDebtCurrent>
    <us-gaap:LongTermDebtNoncurrent contextRef="AsOf2017-12-31" unitRef="USD" decimals="-3">2663000</us-gaap:LongTermDebtNoncurrent>
    <us-gaap:LongTermDebtNoncurrent contextRef="AsOf2018-03-31" unitRef="USD" decimals="-3">2367000</us-gaap:LongTermDebtNoncurrent>
    <us-gaap:DeferredFinanceCostsNet contextRef="AsOf2017-12-31" unitRef="USD" decimals="-3">115000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet contextRef="AsOf2018-03-31" unitRef="USD" decimals="-3">107000</us-gaap:DeferredFinanceCostsNet>
    <PESI:IndefiniteReductionOfBorrowingAvailability contextRef="From2018-01-01to2018-03-31_custom_AmendmentToTheRevisedLoanAgreementMember_custom_PNCBankMember" unitRef="USD" decimals="0">2000000</PESI:IndefiniteReductionOfBorrowingAvailability>
    <us-gaap:CommitmentsAndContingencies contextRef="AsOf2017-12-31" unitRef="USD" xsi:nil="true" />
    <us-gaap:AdjustmentForAmortization contextRef="From2018-01-01to2018-03-31" unitRef="USD" decimals="-3">84000</us-gaap:AdjustmentForAmortization>
    <us-gaap:AdjustmentForAmortization contextRef="From2017-01-01to2017-03-31" unitRef="USD" decimals="-3">94000</us-gaap:AdjustmentForAmortization>
    <us-gaap:EarningsPerShareTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;6. &lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;(Income) Loss Per Share&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Basic income (loss) per share is calculated&#13;based on the weighted-average number of outstanding common shares during the applicable period. Diluted income (loss) per share&#13;is based on the weighted-average number of outstanding common shares plus the weighted-average number of potential outstanding&#13;common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations of dilutive earnings per&#13;shares. The following table reconciles the income (loss) and average share amounts used to compute both basic and diluted income&#13;(loss) per share:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Three Months Ended &lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;(Unaudited)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;(Amounts in Thousands, Except for Per Share Amounts)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income (loss) attributable to Perma-Fix Environmental Services, Inc., common stockholders:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 62%; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Income (loss) from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;293&lt;/font&gt;&lt;/td&gt;&#13; 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   &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Basic Income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(.06&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Diluted income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(.06&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Weighted average shares outstanding: Basic weighted average shares outstanding&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,747&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,681&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Add: dilutive effect of stock options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;26&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Diluted weighted average shares outstanding&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,773&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,681&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Potential shares excluded from above weighted average share calcualtions due to their anti-dilutive effect include: Stock options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;168&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;205&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:EarningsPerShareTextBlock>
    <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Recently Adopted Accounting Standards&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In May 2014, the Financial Accounting Standards&#13;Board (&amp;#8220;FASB&amp;#8221;) issued Accounting Standards Update (&amp;#8220;ASU&amp;#8221;) No. 2014-09, &amp;#8220;Revenue from Contracts with&#13;Customers&amp;#8221; followed by a series of related accounting standard updates (collectively referred to as &amp;#8220;Topic 606&amp;#8221;),&#13;which superseded nearly all existing revenue recognition guidance. Topic 606 provides a single, comprehensive revenue recognition&#13;model for all contracts with customers. Under the new standard, a five-step process is utilized in order to determine revenue recognition,&#13;depicting the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in&#13;exchange for those goods or services. Topic 606 also requires additional disclosure surrounding the nature, amount, timing and&#13;uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments&#13;and assets recognized from costs incurred to obtain or fulfill a contract. Topic 606 is effective for annual reporting periods&#13;beginning after December 15, 2017 (including interim reporting periods within those periods). The new standard permits two implementation&#13;approaches: the full retrospective method, in which case the standard would be applied to each prior reporting period presented&#13;and the cumulative effect of applying the standard would be recognized at the earliest period shown, or the modified retrospective&#13;method, in which case the cumulative effect of applying the standard would be recognized at the date of initial application. The&#13;Company adopted Topic 606 effective January 1, 2018 under the modified retrospective approach to all contracts as of date of adoption.&#13;The Company recognized the cumulative effect of initially adopting Topic 606 as an increase of approximately $317,000 to the opening&#13;balance of accumulated deficit at January 1, 2018. The adoption of Topic 606 did not result in significant changes to our revenue&#13;recognition model within our Treatment and Services Segments. The cumulative impact to the opening balance of accumulated deficit&#13;at January 1, 2018 was primarily driven by changes to the timing of revenue recognition in certain immaterial waste streams within&#13;our Treatment Segment. See &amp;#8220;Note 3 &amp;#8211; Revenue&amp;#8221; for additional disclosures related to our revenues under the new&#13;standard. The comparative previous period information continues to be reported under the accounting standards in effect for that&#13;period. We expect the impact of the adoption of Topic 606 to be immaterial to our consolidated financial statements on an on-going&#13;basis.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The cumulative effect of the changes made to&#13;our January 1, 2018 unaudited Consolidated Balance Sheet for the adoption of Topic 606 was as follows (in thousands):&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balance at&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Adjustment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Opening balance at&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;December 31,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Due to &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;January 1,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;LIABILITIES AND STOCKHOLDERS&amp;#8217; EQUITY&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Current liabilities:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 41%"&gt;&lt;font style="font-size: 10pt"&gt;Disposal/transportation accrual&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,071&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(455&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,616&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Deferred revenue&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,311&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;772&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5,083&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Stockholders&amp;#8217; Equity:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accumulated deficit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(77,893&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(317&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(78,210&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In accordance with Topic 606 requirements,&#13;the disclosure of the impact of adoption of Topic 606 on our unaudited Consolidated Balance Sheets, Consolidated Statement of Operations,&#13;and Consolidated Statement of Comprehensive Income was as follows (in thousands):&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Consolidated Balance Sheet&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balances Before&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Adoption of&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Effect of Change&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;As Reported&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Higher/(Lower)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;LIABILITIES AND STOCKHOLDERS&amp;#8217; EQUITY&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Current liabilities:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 41%"&gt;&lt;font style="font-size: 10pt"&gt;Disposal/transportation accrual&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,478&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,003&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(525&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Deferred revenue&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,620&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5,507&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(887&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Stockholders&amp;#8217; Equity:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accumulated deficit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(78,074&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(78,028&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Consolidated Statement of Operations&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;For the three months ended March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balances Before&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Adoption of&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Effect of Change&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;As Reported&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Higher/(Lower)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 41%"&gt;&lt;font style="font-size: 10pt"&gt;Revenues&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;12,773&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(115&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Cost of goods sold&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;9,337&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;9,406&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(69&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Income from continuing operations, net of taxes&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;253&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;299&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income attributable to Perma-Fix Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;136&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;182&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Continuing operations&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.02&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.02&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8213; &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income per common shares&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8213; &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Consolidated Statement of Comprehensive Income&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;For the three months ended March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;As Reported&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balances Before Adoption of&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Effect of Change Higher/(Lower)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 55%"&gt;&lt;font style="font-size: 10pt"&gt;Net income&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;96&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;142&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;128&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;174&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In August 2016,&#13;the FASB issued ASU 2016-15, &amp;#8220;Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments&#13;(a consensus of the Emerging Issues Task Force),&amp;#8221; which aims to eliminate diversity in practice in how certain cash receipts&#13;and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other&#13;Topics. Subsequently, in November 2016, the FASB issued ASU 2016-18, &amp;#8220;Statement of Cash Flows (Topic 230), Restricted Cash,&#13;a consensus of the FASB Emerging Issues Task Force,&amp;#8221; which clarifies the guidance on the cash flow classification and presentation&#13;of changes in restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash or restricted&#13;cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total&#13;amounts shown on the statement of cash flow. ASU 2016-15 and ASU 2016-18 are effective for annual reporting periods, and interim&#13;periods therein, beginning after December 15, 2017. The adoption of these ASUs by the Company effective January 1, 2018 did not&#13;have a material impact on &lt;/font&gt;the Company&amp;#8217;s financial position, results of operations, or cash flows.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In October 2016,&#13;the FASB issued ASU 2016-16&lt;i&gt;, &lt;/i&gt;&amp;#8220;Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory,&amp;#8221;&#13;which eliminates the existing exception in U.S. GAAP prohibiting the recognition of the income tax consequences for intra-entity&#13;asset transfers. Under ASU 2016-16, entities will be required to recognize the income tax consequences of intra-entity asset transfers&#13;other than inventory when the transfer occurs. ASU 2016-16 is effective on a modified retrospective basis for fiscal years, and&#13;for interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. The adoption of&#13;ASU 2016-16 by the Company effective January 1, 2018 did not have a material impact on &lt;/font&gt;the Company&amp;#8217;s financial position,&#13;results of operations, or cash flows.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In January 2017,&#13;the FASB issued ASU No. 2017-01, &amp;#8220;Business Combinations (Topic 805) &amp;#8211; Clarifying the Definition of a Business.&amp;#8221;&#13;ASU 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether&#13;transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects&#13;many areas of accounting including acquisition, disposals, goodwill and consolidation. This standard is effective for fiscal years&#13;beginning after December 15, 2017, including interim periods within that reporting period. The adoption of ASU 2017-01 by the Company&#13;effective January 1, 2018 did not have a material impact on &lt;/font&gt;the Company&amp;#8217;s financial position, results of operations,&#13;or cash flows.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In May 2017,&#13;the FASB issued ASU 2017-09, &amp;#8220;Compensation &amp;#8211; Stock Compensation (Topic 718): Scope of Modification Accounting.&amp;#8221;&#13;This ASU provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to&#13;apply modification accounting in Topic 718. ASU 2017-09 is effective for fiscal years beginning after December 15, 2017 and interim&#13;periods within those fiscal years, and early adoption is permitted, including in an interim period. ASU 2017-09 is to be applied&#13;on a prospective basis to an award modified on or after the adoption date. The adoption of ASU 2017-01 by the Company effective&#13;January 1, 2018 did not have a material impact on &lt;/font&gt;the Company&amp;#8217;s financial position, results of operations, or cash&#13;flows.&lt;/p&gt;</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
    <PESI:NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Recently Issued Accounting Standards &amp;#8211;&#13;Not Yet Adopted&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;In February 2016, the FASB&#13;issued ASU No. 2016-02, &amp;#8220;Leases (Topic 842).&amp;#8221; Under ASU 2016-02, an entity will be required to recognize right-of-use&#13;assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. ASU 2016-02 offers specific&#13;accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative&#13;and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing&#13;and uncertainty of cash flows arising from leases. For public companies, ASU 2016-02 is effective for annual reporting periods&#13;beginning after December 15, 2018, including interim periods within that reporting period, and requires a modified retrospective&#13;adoption, with early adoption permitted. This ASU is effective January 1, 2019 for the Company. The Company is still evaluating&#13;the potential impact of adopting this guidance on our financial statements.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In February 2018,&#13;FASB issued ASU 2018-02&lt;i&gt;, &amp;#8220;&lt;/i&gt;&lt;/font&gt;&lt;font style="color: #222222"&gt;Income Statement&amp;#8212;Reporting Comprehensive Income&#13;(Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income&amp;#8221;. &lt;/font&gt;&lt;font style="color: #252525"&gt;This&#13;ASU allows for the reclassification of certain income tax effects related to the Tax Cuts and Jobs Act between &amp;#8220;Accumulated&#13;other comprehensive income&amp;#8221; and &amp;#8220;Retained earnings.&amp;#8221; This ASU relates to the requirement that adjustments to&#13;deferred tax liabilities and assets related to a change in tax laws or rates to be included in &amp;#8220;Income from continuing operations&amp;#8221;,&#13;even in situations where the related items were originally recognized in &amp;#8220;Other comprehensive income&amp;#8221; (rather than&#13;in &amp;#8220;Income from continuing operations&amp;#8221;). ASU 2018-02 is effective for all entities for fiscal years beginning after&#13;December 15, 2018, and interim periods within those fiscal years, with early adoption permitted. Adoption of this ASU is to be&#13;applied either in the period of adoption or retrospectively to each period in which the effect of the change in the tax laws or&#13;rates were recognized. The Company is currently assessing the impact that this standard will have on its financial statements.&lt;/font&gt;&lt;/p&gt;</PESI:NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock>
    <us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The fair value of the options granted on January&#13;18, 2018 and January 13, 2017 as discussed above and the related assumptions used in the Black-Scholes option model used to value&#13;the options granted were as follows:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Outside Director Stock Options Granted&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;January 18, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;January 13, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 62%"&gt;&lt;font style="font-size: 10pt"&gt;Weighted-average fair value per option&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2.55&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2.63&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Risk -free interest rate &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2.62&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;%&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2.40&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Expected volatility of stock &lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;57.29&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;%&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;56.32&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Dividend yield&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;None&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;None&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Expected option life &lt;sup&gt;(3)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;10.0 years&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;10.0 years&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;The expected volatility is based on historical volatility from our traded Common Stock over the expected term of the option.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(3)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;The expected option life is based on historical exercises and post-vesting data.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock>
    <us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table summarizes stock-based&#13;compensation recognized for the three months ended March 31, 2018 and 2017 for our employee and director stock options.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Three Months Ended&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;March 31,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;Stock Options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 58%"&gt;&lt;font style="font-size: 10pt"&gt;Employee Stock Options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;10,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Director Stock Options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;36,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;12,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;46,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;23,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock>
    <us-gaap:ScheduleOfStockOptionsRollForwardTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company&amp;#8217;s Plans consist of the 2010&#13;and 2017 Stock Option Plans and the 2003 Outside Directors Stock Plan:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Shares&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Weighted Average Exercise&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;Price&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Weighted Average Remaining Contractual Term&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;(years)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Aggregate Intrinsic &lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;Value &lt;sup&gt;(3)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 42%"&gt;&lt;font style="font-size: 10pt"&gt;Options outstanding January 1, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 11%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;624,800&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 11%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.42&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Granted&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;6,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.05&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Exercised&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Forfeited/expired&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options outstanding end of period &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;630,800&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.41&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5.3&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;259,070&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options exercisable at March 31, 2018&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;191,467&lt;/font&gt;&lt;/td&gt;&#13; 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   &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Forfeited/expired&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(30,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5.00&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options outstanding end of period &lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;223,200&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;6.84&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.7&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,380&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options exercisable at March 31, 2017&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;163,867&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;7.87&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.5&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,380&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options exercisable and expected to be vested at March 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;223,200&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;6.84&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.7&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,380&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 2%"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 98%"&gt;&lt;font style="font-size: 10pt"&gt;Options with exercise prices ranging from $2.79 to $13.35&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Options with exercise prices ranging from $2.79 to $14.75&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(3)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;The intrinsic value of a stock option is the amount by which the market value of the underlying stock exceeds the exercise price of the option.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfStockOptionsRollForwardTableTextBlock>
    <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table reconciles the income (loss)&#13;and average share amounts used to compute both basic and diluted income (loss) per share:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Three Months Ended &lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;(Unaudited)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;(Amounts in Thousands, Except for Per Share Amounts)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income (loss) attributable to Perma-Fix Environmental Services, Inc., common stockholders:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 62%; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Income (loss) from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;293&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(596&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(157&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(131&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;136&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(727&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Basic Income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(.06&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Diluted income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(.06&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Weighted average shares outstanding: Basic weighted average shares outstanding&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,747&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,681&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Add: dilutive effect of stock options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;26&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Diluted weighted average shares outstanding&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,773&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,681&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Potential shares excluded from above weighted average share calcualtions due to their anti-dilutive effect include: Stock options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;168&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;205&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
    <us-gaap:ScheduleOfDebtInstrumentsTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Long-term debt consists of the following at&#13;March 31, 2018 and December 31, 2017:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;(Amounts in Thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;December 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Revolving Credit &lt;/b&gt;facility dated October 31, 2011, as amended, borrowings based upon eligible accounts receivable, subject to monthly borrowing base calculation, balance due March 24, 2021.&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 62%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Term Loan&lt;/b&gt; dated October 31, 2011, as amended, payable in equal monthly installments of principal of $102, balance due on March 24, 2021. Effective interest rate for the first quarter of 2018 was 5.0%. &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 16%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,551 &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 16%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,847&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Total debt&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,551&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,847&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Less current portion of long-term debt&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,184&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,184&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Long-term debt&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,367&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,663&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;Our revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;Net of debt issuance costs of ($107,000) and ($115,000) at March 31, 2018 and December 31, 2017, respectively.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfDebtInstrumentsTextBlock>
    <us-gaap:DebtInstrumentInterestRateEffectivePercentage contextRef="AsOf2017-12-31_custom_TermLoanMember693338284" unitRef="Pure" decimals="INF">0.050</us-gaap:DebtInstrumentInterestRateEffectivePercentage>
    <us-gaap:DebtInstrumentInterestRateEffectivePercentage contextRef="AsOf2018-03-31_custom_TermLoanMember375504437" unitRef="Pure" decimals="INF">0.050</us-gaap:DebtInstrumentInterestRateEffectivePercentage>
    <PESI:EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo contextRef="AsOf2018-03-31" unitRef="USD" decimals="-3">126000</PESI:EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo>
    <PESI:EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree contextRef="AsOf2018-03-31" unitRef="USD" decimals="-3">114000</PESI:EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree>
    <PESI:EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour contextRef="AsOf2018-03-31" unitRef="USD" decimals="-3">114000</PESI:EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour>
    <PESI:AdoptionOfAccountingStandardsUpdates contextRef="From2018-01-01to2018-03-31" unitRef="USD" decimals="-3">-317000</PESI:AdoptionOfAccountingStandardsUpdates>
    <PESI:AdoptionOfAccountingStandardsUpdates contextRef="From2018-01-01to2018-03-31_us-gaap_RetainedEarningsMember" unitRef="USD" decimals="-3">-317000</PESI:AdoptionOfAccountingStandardsUpdates>
    <us-gaap:ScheduleOfChangeInAccountingEstimateTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The cumulative effect of the changes made to&#13;our January 1, 2018 unaudited Consolidated Balance Sheet for the adoption of Topic 606 was as follows (in thousands):&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balance at&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Adjustment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Opening balance at&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;December 31,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Due to &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;January 1,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;LIABILITIES AND STOCKHOLDERS&amp;#8217; EQUITY&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Current liabilities:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 41%"&gt;&lt;font style="font-size: 10pt"&gt;Disposal/transportation accrual&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,071&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(455&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,616&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Deferred revenue&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,311&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;772&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5,083&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Stockholders&amp;#8217; Equity:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accumulated deficit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(77,893&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(317&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(78,210&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfChangeInAccountingEstimateTextBlock>
    <us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table summarizes information&#13;relating to the Company&amp;#8217;s definite-lived intangible assets:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="14" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;December 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Useful&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Gross&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Net&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Gross&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Net&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Lives&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Carrying&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Accumulated&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Carrying&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Carrying&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Accumulated&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Carrying&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;Intangibles (amount in thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;(Years)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Amount&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Amortization&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Amount&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Amount&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Amortization&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Amount&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 37%"&gt;&lt;font style="font-size: 10pt"&gt;Patent&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 2%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 5%; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;1-17&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 6%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;673&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 6%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(314&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 6%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;359&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 6%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;657&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 6%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(306&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 6%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;351&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Software&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;3&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;410&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(400&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;10&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;410&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(398&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;12&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Customer relationships&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;12&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,370&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(2,307&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,063&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,370&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(2,246&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,124&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Permit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;10&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;545&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(496&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;49&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;545&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(483&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;62&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,998&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(3,517&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,481&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,982&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(3,433&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,549&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock>
    <us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table summarizes the expected&#13;amortization over the next five years for our definite-lived intangible assets (including the one definite-lived permit):&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Amount&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;Year&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;(In thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 76%"&gt;&lt;font style="font-size: 10pt"&gt;2018 (remaining)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 20%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;251&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;2019&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;254&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;2020&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;218&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;2121&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;198&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;2022&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;173&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock>
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    <us-gaap:DepreciationAndAmortization contextRef="From2018-01-01to2018-03-31_custom_SegmentsTotalMember" unitRef="USD" decimals="-3">363000</us-gaap:DepreciationAndAmortization>
    <us-gaap:DepreciationAndAmortization contextRef="From2017-01-01to2017-03-31_custom_SegmentsTotalMember" unitRef="USD" decimals="-3">1145000</us-gaap:DepreciationAndAmortization>
    <us-gaap:DepreciationAndAmortization contextRef="From2018-01-01to2018-03-31_us-gaap_CorporateMember" unitRef="USD" id="Foot-00-22" decimals="-3">9000</us-gaap:DepreciationAndAmortization>
    <us-gaap:DepreciationAndAmortization contextRef="From2017-01-01to2017-03-31_us-gaap_CorporateMember" unitRef="USD" id="Foot-00-23" decimals="-3">10000</us-gaap:DepreciationAndAmortization>
    <us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;1. &lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Basis of Presentation&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The consolidated condensed financial statements&#13;included herein have been prepared by the Company (which may be referred to as we, us or our), without an audit, pursuant to the&#13;rules and regulations of the Securities and Exchange Commission (&amp;#8220;the Commission&amp;#8221;). Certain information and note disclosures&#13;normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States&#13;of America (&amp;#8220;U.S. GAAP&amp;#8221;) have been condensed or omitted pursuant to such rules and regulations, although the Company&#13;believes the disclosures which are made are adequate to make the information presented not misleading. Further, the consolidated&#13;condensed financial statements reflect, in the opinion of management, all adjustments (which include only normal recurring adjustments)&#13;necessary to present fairly the financial position and results of operations as of and for the periods indicated. The results of&#13;operations for the three months ended March 31, 2018 are not necessarily indicative of results to be expected for the fiscal year&#13;ending December 31, 2018.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company suggests that these consolidated&#13;condensed financial statements be read in conjunction with the consolidated financial statements and the notes thereto included&#13;in the Company&amp;#8217;s Annual Report on Form 10-K for the year ended December 31, 2017.&lt;/p&gt;</us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock>
    <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;2. &lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Summary of Significant Accounting Policies&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Our accounting policies are as set forth in&#13;the notes to the December 31, 2017 consolidated financial statements referred to above.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Recently Adopted Accounting Standards&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In May 2014, the Financial Accounting Standards&#13;Board (&amp;#8220;FASB&amp;#8221;) issued Accounting Standards Update (&amp;#8220;ASU&amp;#8221;) No. 2014-09, &amp;#8220;Revenue from Contracts with&#13;Customers&amp;#8221; followed by a series of related accounting standard updates (collectively referred to as &amp;#8220;Topic 606&amp;#8221;),&#13;which superseded nearly all existing revenue recognition guidance. Topic 606 provides a single, comprehensive revenue recognition&#13;model for all contracts with customers. Under the new standard, a five-step process is utilized in order to determine revenue recognition,&#13;depicting the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in&#13;exchange for those goods or services. Topic 606 also requires additional disclosure surrounding the nature, amount, timing and&#13;uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments&#13;and assets recognized from costs incurred to obtain or fulfill a contract. Topic 606 is effective for annual reporting periods&#13;beginning after December 15, 2017 (including interim reporting periods within those periods). The new standard permits two implementation&#13;approaches: the full retrospective method, in which case the standard would be applied to each prior reporting period presented&#13;and the cumulative effect of applying the standard would be recognized at the earliest period shown, or the modified retrospective&#13;method, in which case the cumulative effect of applying the standard would be recognized at the date of initial application. The&#13;Company adopted Topic 606 effective January 1, 2018 under the modified retrospective approach to all contracts as of date of adoption.&#13;The Company recognized the cumulative effect of initially adopting Topic 606 as an increase of approximately $317,000 to the opening&#13;balance of accumulated deficit at January 1, 2018. The adoption of Topic 606 did not result in significant changes to our revenue&#13;recognition model within our Treatment and Services Segments. The cumulative impact to the opening balance of accumulated deficit&#13;at January 1, 2018 was primarily driven by changes to the timing of revenue recognition in certain immaterial waste streams within&#13;our Treatment Segment. See &amp;#8220;Note 3 &amp;#8211; Revenue&amp;#8221; for additional disclosures related to our revenues under the new&#13;standard. The comparative previous period information continues to be reported under the accounting standards in effect for that&#13;period. We expect the impact of the adoption of Topic 606 to be immaterial to our consolidated financial statements on an on-going&#13;basis.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The cumulative effect of the changes made to&#13;our January 1, 2018 unaudited Consolidated Balance Sheet for the adoption of Topic 606 was as follows (in thousands):&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balance at&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Adjustment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Opening balance at&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;December 31,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Due to &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;January 1,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;LIABILITIES AND STOCKHOLDERS&amp;#8217; EQUITY&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Current liabilities:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 41%"&gt;&lt;font style="font-size: 10pt"&gt;Disposal/transportation accrual&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,071&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(455&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,616&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Deferred revenue&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,311&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;772&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5,083&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Stockholders&amp;#8217; Equity:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accumulated deficit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(77,893&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(317&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(78,210&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In accordance with Topic 606 requirements,&#13;the disclosure of the impact of adoption of Topic 606 on our unaudited Consolidated Balance Sheets, Consolidated Statement of Operations,&#13;and Consolidated Statement of Comprehensive Income was as follows (in thousands):&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Consolidated Balance Sheet&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balances Before&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Adoption of&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Effect of Change&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;As Reported&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Higher/(Lower)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;LIABILITIES AND STOCKHOLDERS&amp;#8217; EQUITY&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Current liabilities:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 41%"&gt;&lt;font style="font-size: 10pt"&gt;Disposal/transportation accrual&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,478&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,003&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(525&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Deferred revenue&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,620&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5,507&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(887&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Stockholders&amp;#8217; Equity:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accumulated deficit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(78,074&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(78,028&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Consolidated Statement of Operations&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;For the three months ended March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balances Before&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Adoption of&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Effect of Change&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;As Reported&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Higher/(Lower)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 41%"&gt;&lt;font style="font-size: 10pt"&gt;Revenues&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;12,773&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(115&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Cost of goods sold&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;9,337&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;9,406&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(69&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Income from continuing operations, net of taxes&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;253&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;299&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income attributable to Perma-Fix Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;136&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;182&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Continuing operations&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.02&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.02&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8213; &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income per common shares&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8213; &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Consolidated Statement of Comprehensive Income&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;For the three months ended March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;As Reported&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balances Before Adoption of&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Effect of Change Higher/(Lower)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 55%"&gt;&lt;font style="font-size: 10pt"&gt;Net income&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;96&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;142&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;128&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;174&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In August 2016,&#13;the FASB issued ASU 2016-15, &amp;#8220;Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments&#13;(a consensus of the Emerging Issues Task Force),&amp;#8221; which aims to eliminate diversity in practice in how certain cash receipts&#13;and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other&#13;Topics. Subsequently, in November 2016, the FASB issued ASU 2016-18, &amp;#8220;Statement of Cash Flows (Topic 230), Restricted Cash,&#13;a consensus of the FASB Emerging Issues Task Force,&amp;#8221; which clarifies the guidance on the cash flow classification and presentation&#13;of changes in restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash or restricted&#13;cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total&#13;amounts shown on the statement of cash flow. ASU 2016-15 and ASU 2016-18 are effective for annual reporting periods, and interim&#13;periods therein, beginning after December 15, 2017. The adoption of these ASUs by the Company effective January 1, 2018 did not&#13;have a material impact on &lt;/font&gt;the Company&amp;#8217;s financial position, results of operations, or cash flows.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In October 2016,&#13;the FASB issued ASU 2016-16&lt;i&gt;, &lt;/i&gt;&amp;#8220;Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory,&amp;#8221;&#13;which eliminates the existing exception in U.S. GAAP prohibiting the recognition of the income tax consequences for intra-entity&#13;asset transfers. Under ASU 2016-16, entities will be required to recognize the income tax consequences of intra-entity asset transfers&#13;other than inventory when the transfer occurs. ASU 2016-16 is effective on a modified retrospective basis for fiscal years, and&#13;for interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. The adoption of&#13;ASU 2016-16 by the Company effective January 1, 2018 did not have a material impact on &lt;/font&gt;the Company&amp;#8217;s financial position,&#13;results of operations, or cash flows.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In January 2017,&#13;the FASB issued ASU No. 2017-01, &amp;#8220;Business Combinations (Topic 805) &amp;#8211; Clarifying the Definition of a Business.&amp;#8221;&#13;ASU 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether&#13;transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects&#13;many areas of accounting including acquisition, disposals, goodwill and consolidation. This standard is effective for fiscal years&#13;beginning after December 15, 2017, including interim periods within that reporting period. The adoption of ASU 2017-01 by the Company&#13;effective January 1, 2018 did not have a material impact on &lt;/font&gt;the Company&amp;#8217;s financial position, results of operations,&#13;or cash flows.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In May 2017, the&#13;FASB issued ASU 2017-09, &amp;#8220;Compensation &amp;#8211; Stock Compensation (Topic 718): Scope of Modification Accounting.&amp;#8221; This&#13;ASU provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply&#13;modification accounting in Topic 718. ASU 2017-09 is effective for fiscal years beginning after December 15, 2017 and interim periods&#13;within those fiscal years, and early adoption is permitted, including in an interim period. ASU 2017-09 is to be applied on a prospective&#13;basis to an award modified on or after the adoption date. The adoption of ASU 2017-01 by the Company effective January 1, 2018&#13;did not have a material impact on &lt;/font&gt;the Company&amp;#8217;s financial position, results of operations, or cash flows.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Recently Issued Accounting Standards &amp;#8211;&#13;Not Yet Adopted&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;In February 2016, the FASB&#13;issued ASU No. 2016-02, &amp;#8220;Leases (Topic 842).&amp;#8221; Under ASU 2016-02, an entity will be required to recognize right-of-use&#13;assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. ASU 2016-02 offers specific&#13;accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative&#13;and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing&#13;and uncertainty of cash flows arising from leases. For public companies, ASU 2016-02 is effective for annual reporting periods&#13;beginning after December 15, 2018, including interim periods within that reporting period, and requires a modified retrospective&#13;adoption, with early adoption permitted. This ASU is effective January 1, 2019 for the Company. The Company is still evaluating&#13;the potential impact of adopting this guidance on our financial statements.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="color: #252525"&gt;In February 2018,&#13;FASB issued ASU 2018-02&lt;i&gt;, &amp;#8220;&lt;/i&gt;&lt;/font&gt;&lt;font style="color: #222222"&gt;Income Statement&amp;#8212;Reporting Comprehensive Income&#13;(Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income&amp;#8221;. &lt;/font&gt;&lt;font style="color: #252525"&gt;This&#13;ASU allows for the reclassification of certain income tax effects related to the Tax Cuts and Jobs Act between &amp;#8220;Accumulated&#13;other comprehensive income&amp;#8221; and &amp;#8220;Retained earnings.&amp;#8221; This ASU relates to the requirement that adjustments to&#13;deferred tax liabilities and assets related to a change in tax laws or rates to be included in &amp;#8220;Income from continuing operations&amp;#8221;,&#13;even in situations where the related items were originally recognized in &amp;#8220;Other comprehensive income&amp;#8221; (rather than&#13;in &amp;#8220;Income from continuing operations&amp;#8221;). ASU 2018-02 is effective for all entities for fiscal years beginning after&#13;December 15, 2018, and interim periods within those fiscal years, with early adoption permitted. Adoption of this ASU is to be&#13;applied either in the period of adoption or retrospectively to each period in which the effect of the change in the tax laws or&#13;rates were recognized. The Company is currently assessing the impact that this standard will have on its financial statements.&lt;/font&gt;&lt;/p&gt;</us-gaap:SignificantAccountingPoliciesTextBlock>
    <us-gaap:RevenueFromContractWithCustomerTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;3.&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Revenue&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The Company accounts for revenue&#13;in accordance with ASC Topic 606, which we adopted on January 1, 2018 using the modified retrospective method. The majority of&#13;our revenue is derived from short term contracts with an original expected length of one year or less.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;Performance Obligation&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;A performance obligation is&#13;a promise in a contract to transfer a distinct good or service to the customer and is the unit of account in Topic 606. A contract&amp;#8217;s&#13;transaction price is allocated to each distinct performance obligation and recognized as revenue as the performance obligation&#13;is satisfied.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;i&gt;Treatment Segment Revenues:&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;i&gt;&amp;#160;&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;Contracts in our Treatment&#13;Segment have a single performance obligation as the promise to receive, treat and dispose of waste is not separately identifiable&#13;in the contract and, therefore, not distinct. Performance obligations are generally satisfied over time using the input method.&#13;Under the input method, the Company uses a measure of progress divided into major phases which include receipt, treatment/processing&#13;and shipment/final disposal. As major processing phases are completed and the costs are incurred, the proportional percentage of&#13;revenue is recognized. Transaction price for Treatment Segment contracts are determined by the stated fixed rate per unit price&#13;as stipulated in the contract.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;i&gt;Services Segment Revenues:&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;i&gt;&amp;#160;&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;Revenues for our Services Segment&#13;are generated from time and materials, cost reimbursement or fixed price arrangements:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The Company&amp;#8217;s primary&#13;obligation to customers in time and materials contracts relate to the provision of services to the customer at the direction of&#13;the customer. This provision of services at the request of the customer is the performance obligation, which is satisfied over&#13;time. Revenue earned from time and materials contracts is determined using the input method and is based on contractually defined&#13;billing rates applied to services performed and materials delivered.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The Company&amp;#8217;s primary&#13;performance obligation to customers in cost reimbursement contracts is to complete certain tasks and work steams. Each specified&#13;work stream or task within the contract is considered to be a separate performance obligation. The transaction price is calculated&#13;using an estimated cost to complete the various scope items to achieve the performance obligation as stipulated in the contract.&#13;An estimate is prepared for each individual scope item in the contract and the transaction price is allocated on a time and materials&#13;basis as services are provided. Revenue from cost reimbursement contracts is recognized over time using the input method based&#13;on costs incurred, plus a proportionate amount of fee earned.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;Under fixed price contracts,&#13;the objective of the project is not attained unless all scope items within the contract are completed and all of the services promised&#13;within fixed fee contracts constitute a single performance obligation. Transaction price is estimated based upon the estimated&#13;cost to complete the overall project. Revenue from fixed price contract is recognized over time using the output method based on&#13;the percentage of project completion multiplied by the total fee as a measure of progress.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The nature of our contracts&#13;does not give rise to variable considerations.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;Significant Payment Terms&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;Invoicing is based on schedules&#13;established in customer contracts. Payment terms vary by customers but are generally established at 30 days from invoicing.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;Disaggregation of Revenue&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;In general, the Company&amp;#8217;s&#13;business segmentation is aligned according to the nature and economic characteristics of our services and provides meaningful disaggregation&#13;of each business segment&amp;#8217;s results of operations. The following tables present further disaggregation of our revenues by&#13;different categories for our Services and Treatment Segments:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Three Months Ended&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Three Months Ended&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Revenue by Contract Type&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;March 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(In thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 40%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Fixed price&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;8,959&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;90&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;9,049&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;10,034&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;98&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;10,132&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Cost reimbursement&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Time and materials&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,609&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,609&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,575&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,575&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;8,959&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,699&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;10,034&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,673&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;12,707&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Three Months Ended&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Three Months Ended&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Revenue by generator&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;March 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(In thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 40%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Domestic government&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;6,536&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,118&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;9,654&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;7,371&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,068&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;9,439&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Domestic commercial&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,423&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;402&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,825&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,663&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;519&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,182&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Foreign government&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;153&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;153&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;65&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;65&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Foreign commercial&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; 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   &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;21&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;21&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;8,959&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,699&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;10,034&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,673&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;12,707&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;Contract Balances&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The timing of revenue recognition,&#13;billings, and cash collections results in accounts receivable and unbilled receivables (contract assets). The Company&amp;#8217;s contract&#13;liabilities consist of deferred revenues which represents advance payment from customers in advance of the completion of our performance&#13;obligation.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The following table represents&#13;changes in our contract assets and contract liabilities balances:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(In thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;January 1, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Year-to-date&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt; color: black"&gt;Change ($)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Year-to-date&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt; color: black"&gt;Change (%)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;&lt;b&gt;Contract assets&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="width: 36%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Account receivables, net of allowance&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 13%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;4,762&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 13%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;7,940&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 13%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(3,178&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 13%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(40.0&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;)%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Unbilled receivables - current&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;4,574&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;4,547&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;27&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;0.6&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Unbilled receivables - non-current&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;92&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;184&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(92&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(50.0&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;)%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;&lt;b&gt;Contract liabilities&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Deferred revenue&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;4,620&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;5,083&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(463&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(9.1&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;)%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The net decrease in our contract assets was&#13;primarily due to increased accounts receivable collections. The Company provides various payment terms to our customers; therefore,&#13;our accounts receivable are impacted by these terms and the related timing of accounts receivable collections.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;Revenue recognized for the&#13;three months ended March 31, 2018 and 2017 that was included in the contract liability balance at the beginning of each year was&#13;$3,811,000 and $2,977,000, respectively. All revenue recognized in each period related to performance obligations satisfied within&#13;the respective period.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;Incremental Costs to Obtain&#13;a Contract&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;Costs incurred to obtain contracts&#13;with our customers are immaterial and as a result, the Company expenses (within selling, general and administration expenses (&amp;#8220;SG&amp;#38;A&amp;#8221;))&#13;incremental costs incurred in obtaining contracts with our customer as incurred.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;Remaining Performance Obligations&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The Company applies the practical&#13;expedient in paragraph 606-10-50-14 and does not disclose information about remaining performance obligations that have original&#13;expected durations of one year or less.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The Company applies the transition&#13;practical expedient in paragraph 606-10-65-1(f)(3) and does not disclose the amount of the transaction price allocated to the&#13;remaining performance obligations or an explanation of when the Company expects to recognize that amount as revenue for periods&#13;prior to the adoption of Topic 606.&lt;/p&gt;</us-gaap:RevenueFromContractWithCustomerTextBlock>
    <us-gaap:IntangibleAssetsDisclosureTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;4.&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Intangible Assets&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table summarizes information&#13;relating to the Company&amp;#8217;s definite-lived intangible assets:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="14" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;December 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Useful&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Gross&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Net&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Gross&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13; 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   &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Carrying&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Carrying&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Accumulated&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Carrying&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;Intangibles (amount in thousands)&lt;/font&gt;&lt;/td&gt;&#13; 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   &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(496&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;49&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;545&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(483&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;62&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,998&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(3,517&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,481&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,982&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(3,433&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,549&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The intangible assets noted above are amortized&#13;on a straight-line basis over their useful lives with the exception of customer relationships which are being amortized using an&#13;accelerated method. The Company has only one definite-lived permit that is subject to amortization.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table summarizes the expected&#13;amortization over the next five years for our definite-lived intangible assets (including the one definite-lived permit):&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Amount&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;Year&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;(In thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 76%"&gt;&lt;font style="font-size: 10pt"&gt;2018 (remaining)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 20%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;251&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;2019&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;254&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;2020&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;218&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;2121&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;198&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;2022&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;173&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Amortization expenses relating to the definite-lived&#13;intangible assets as discussed above were $84,000 and $94,000 for the three months ended March 31, 2018 and 2017, respectively.&lt;/p&gt;</us-gaap:IntangibleAssetsDisclosureTextBlock>
    <us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;5. &lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Capital Stock, Stock Plans and Stock Based Compensation&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company has certain stock option plans&#13;under which it awards incentive and non-qualified stock options to employees, officers, and outside directors.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;On January 18, 2018, the Company granted 6,000&#13;options from the Company&amp;#8217;s 2003 Outside Directors Stock Plan to a new director elected by the Company&amp;#8217;s Board of Directors&#13;(&amp;#8220;Board&amp;#8221;) to fill a vacancy on the Board. The options granted were for a contractual term of ten years with a vesting&#13;period of six months. The exercise price of the options was $4.05 per share, which was equal to our closing stock price the day&#13;preceding the grant date, pursuant to the 2003 Outside Directors Stock Plan.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;On January 13, 2017, the Company granted 6,000&#13;options from the Company&amp;#8217;s 2003 Outside Directors Stock Plan to a new director elected by the Company&amp;#8217;s Board to fill&#13;a vacancy left by Jack Lahav who retired from the Board in October 2016. The options granted were for a contractual term of ten&#13;years with a vesting period of six months. The exercise price of the options was $3.79 per share, which was equal to our closing&#13;stock price the day preceding the grant date, pursuant to the 2003 Outside Directors Stock Plan.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company estimates fair value of stock options&#13;using the Black-Scholes valuation model. Assumptions used to estimate the fair value of stock options granted include the exercise&#13;price of the award, the expected term, the expected volatility of the Company&amp;#8217;s stock over the option&amp;#8217;s expected term,&#13;the risk-free interest rate over the option&amp;#8217;s expected term, and the expected annual dividend yield. The fair value of the&#13;options granted on January 18, 2018 and January 13, 2017 as discussed above and the related assumptions used in the Black-Scholes&#13;option model used to value the options granted were as follows:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Outside Director Stock Options Granted&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;January 18, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;January 13, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 62%"&gt;&lt;font style="font-size: 10pt"&gt;Weighted-average fair value per option&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2.55&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2.63&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Risk -free interest rate &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2.62&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;%&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2.40&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Expected volatility of stock &lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;57.29&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;%&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;56.32&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Dividend yield&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;None&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;None&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Expected option life &lt;sup&gt;(3)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;10.0 years&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;10.0 years&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;The expected volatility is based on historical volatility from our traded Common Stock over the expected term of the option.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(3)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;The expected option life is based on historical exercises and post-vesting data.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table summarizes stock-based&#13;compensation recognized for the three months ended March 31, 2018 and 2017 for our employee and director stock options.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Three Months Ended&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;March 31,&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;Stock Options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 58%"&gt;&lt;font style="font-size: 10pt"&gt;Employee Stock Options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;10,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Director Stock Options&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;36,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;12,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;46,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;23,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;br style="clear: both" /&gt;&#13;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;At March 31, 2018, the Company has approximately&#13;$547,000 of total unrecognized compensation cost related to unvested options, of which $148,000 is expected to be recognized in&#13;remaining 2018, $126,000 in 2019, $114,000 in 2020, $114,000 in 2021, with the remaining $45,000 in 2022.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The summary of the Company&amp;#8217;s total Stock&#13;Option Plans as of March 31, 2018 and March 31, 2017, and changes during the periods then ended, are presented below. The Company&amp;#8217;s&#13;Plans consist of the 2010 and 2017 Stock Option Plans and the 2003 Outside Directors Stock Plan:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Shares&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Weighted Average Exercise&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;Price&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Weighted Average Remaining Contractual Term&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;(years)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Aggregate Intrinsic &lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;Value &lt;sup&gt;(3)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 42%"&gt;&lt;font style="font-size: 10pt"&gt;Options outstanding January 1, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 11%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;624,800&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 11%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.42&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Granted&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;6,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.05&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Exercised&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Forfeited/expired&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options outstanding end of period &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;630,800&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.41&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5.3&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;259,070&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options exercisable at March 31, 2018&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;191,467&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13; 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   &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5.3&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;259,070&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Shares&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Weighted Average Exercise&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;Price&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Weighted Average Remaining Contractual Term&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;(years)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Aggregate Intrinsic&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;Value &lt;sup&gt;(3)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 42%"&gt;&lt;font style="font-size: 10pt"&gt;Options outstanding January 1, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 11%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;247,200&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 11%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;6.69&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Granted&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;6,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3.79&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Exercised&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#9472;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Forfeited/expired&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(30,000&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5.00&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options outstanding end of period &lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;223,200&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13; 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background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options exercisable at March 31, 2017&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;163,867&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;7.87&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.5&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,380&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Options exercisable and expected to be vested at March 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;223,200&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;6.84&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4.7&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,380&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 2%"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 98%"&gt;&lt;font style="font-size: 10pt"&gt;Options with exercise prices ranging from $2.79 to $13.35&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Options with exercise prices ranging from $2.79 to $14.75&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(3)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;The intrinsic value of a stock option is the amount by which the market value of the underlying stock exceeds the exercise price of the option.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;During the three months ended March 31, 2018,&#13;the Company issued a total of 16,074 shares of its Common Stock under the 2003 Outside Directors Stock Plan to its outside directors&#13;as compensation for serving on our Board. The Company has recorded approximately $64,000 in compensation expenses (included in&#13;selling, general and administration expenses) in connection with the issuance of shares of its common stock to outside directors.&lt;/p&gt;</us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock>
    <us-gaap:LongTermDebtTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;7&lt;b&gt;.&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Long Term Debt&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Long-term debt consists of the following at&#13;March 31, 2018 and December 31, 2017:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;(Amounts in Thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;December 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Revolving Credit &lt;/b&gt;facility dated October 31, 2011, as amended, borrowings based upon eligible accounts receivable, subject to monthly borrowing base calculation, balance due March 24, 2021.&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 62%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Term Loan&lt;/b&gt; dated October 31, 2011, as amended, payable in equal monthly installments of principal of $102, balance due on March 24, 2021. Effective interest rate for the first quarter of 2018 was 5.0%. &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 16%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,551 &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 16%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,847&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Total debt&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,551&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;3,847&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Less current portion of long-term debt&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,184&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,184&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Long-term debt&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,367&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,663&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;Our revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;Net of debt issuance costs of ($107,000) and ($115,000) at March 31, 2018 and December 31, 2017, respectively.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Revolving Credit and Term Loan Agreement&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 13.5pt; text-align: justify; text-indent: -13.5pt"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company entered into an Amended and Restated&#13;Revolving Credit, Term Loan and Security Agreement, dated October 31, 2011 (&amp;#8220;Amended Loan Agreement&amp;#8221;), with PNC National&#13;Association (&amp;#8220;PNC&amp;#8221;), acting as agent and lender. The Amended Loan Agreement has been amended from time to time since&#13;the execution of the Amended Loan Agreement. The Amended Loan Agreement, as subsequently amended (&amp;#8220;Revised Loan Agreement&amp;#8221;),&#13;provides the Company with the following credit facility with a maturity date of March 24, 2021: (a) up to $12,000,000 revolving&#13;credit (&amp;#8220;revolving credit&amp;#8221;) and (b) a term loan (&amp;#8220;term loan&amp;#8221;) of approximately $6,100,000, which requires&#13;monthly installments of approximately $101,600 (based on a seven-year amortization). The maximum that we can borrow under the revolving&#13;credit is based on a percentage of eligible receivables (as defined) at any one time reduced by outstanding standby letters of&#13;credit and borrowing reductions that our lender may impose from time to time.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Under the Revised Loan Agreement, we have the&#13;option of paying an annual rate of interest due on the revolving credit at prime plus 2% or London Inter Bank Offer Rate (&amp;#8220;LIBOR&amp;#8221;)&#13;plus 3% and the term loan at prime plus 2.5% or LIBOR plus 3.5%.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Pursuant to the Revised Loan Agreement, the&#13;Company may terminate the Revised Loan Agreement, upon 90 days&amp;#8217; prior written notice upon payment in full of its obligations&#13;under the Revised Loan Agreement. The Company agreed to pay PNC 1.0% of the total financing had the Company paid off its obligations&#13;on or before March 23, 2017, .50% of the total financing had the Company paid off its obligations after March 23, 2017 but prior&#13;to or on March 23, 2018, and .25% of the total financing if the Company pays off its obligations after March 23, 2018 but prior&#13;to or on March 23, 2019. No early termination fee shall apply if the Company pays off its obligations after March 23, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;At March 31, 2018, the borrowing availability&#13;under our revolving credit was approximately $2,823,000, based on our eligible receivables and includes an indefinite reduction&#13;of borrowing availability of $2,000,000 that the Company&amp;#8217;s lender has imposed. Our borrowing availability under our revolving&#13;credit was also reduced by outstanding standby letters of credit totaling approximately $2,660,000.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company&amp;#8217;s credit facility with PNC&#13;contains certain financial covenants, along with customary representations and warranties. A breach of any of these financial&#13;covenants, unless waived by PNC, could result in a default under our credit facility allowing our lender to immediately require&#13;the repayment of all outstanding debt under our credit facility and terminate all commitments to extend further credit. The Company&#13;met its quarterly financial covenants in the first quarter of 2018 and expects to meet its quarterly financial covenants in each&#13;of the remaining quarters of 2018 and into the first half of 2019.&lt;/p&gt;</us-gaap:LongTermDebtTextBlock>
    <us-gaap:AssetRetirementObligationDisclosureTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;8. &lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;East Tennessee Materials and Energy Corporation (&amp;#8220;M&amp;#38;EC&amp;#8221;)&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company continues its plan to close its&#13;M&amp;#38;EC facility by the end of the M&amp;#38;EC&amp;#8217;s amended lease term of June 30, 2018. Operations at the M&amp;#38;EC facility are&#13;limited during the remaining term of the lease and the facility continues to transition waste shipments and operational capabilities&#13;to our other Treatment Segment facilities, subject to customer requirements and regulatory approvals. Simultaneously, the Company&#13;continues with closure and decommissioning activities in accordance with M&amp;#38;EC&amp;#8217;s license and permit requirements.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;At March 31, 2018, total accrued closure liabilities&#13;for our M&amp;#38;EC subsidiary totaled approximately $1,864,000 which are recorded as current liabilities. The following reflects&#13;changes to the closure liabilities for the M&amp;#38;EC facility from year end 2017:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;Amounts in thousands&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 77%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Balance as of December 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 20%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,791&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accretion expense&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;19&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Payments&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(946&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Balance as of March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,864&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;During the first quarter of 2018 and 2017,&#13;M&amp;#38;EC&amp;#8217;s revenues were approximately $56,000 and $3,379,000, respectively.&lt;/p&gt;</us-gaap:AssetRetirementObligationDisclosureTextBlock>
    <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;9. &lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Commitments and Contingencies&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Hazardous Waste&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In connection with our waste management services,&#13;we process both hazardous and non-hazardous waste, which we transport to our own, or other, facilities for destruction or disposal.&#13;As a result of disposing of hazardous substances, in the event any cleanup is required, we could be a potentially responsible party&#13;for the costs of the cleanup notwithstanding any absence of fault on our part.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Legal Matters&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In the normal course of conducting our business,&#13;we are involved in various litigation. We are not a party to any litigation or governmental proceeding which our management believes&#13;could result in any judgments or fines against us that would have a material adverse effect on our financial position, liquidity&#13;or results of future operations.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Insurance&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company has a 25-year finite risk insurance&#13;policy entered into in June 2003 with American International Group, Inc. (&amp;#8220;AIG&amp;#8221;), which provides financial assurance&#13;to the applicable states for our permitted facilities in the event of unforeseen closure. The policy, as amended, provides for&#13;a maximum allowable coverage of $39,000,000 and has available capacity to allow for annual inflation and other performance and&#13;surety bond requirements. At March 31, 2018, our financial assurance coverage amount under this policy totaled approximately $29,911,000.&#13;The Company has recorded $15,726,000 and $15,676,000 in sinking funds related to this policy in other long term assets on the accompanying&#13;Consolidated Balance Sheets at March 31, 2018 and December 31, 2017, respectively, which includes interest earned of $1,255,000&#13;and $1,205,000 on the sinking funds as of March 31, 2018 and December 31, 2017, respectively. Interest income for the three months&#13;ended March 31, 2018 and 2017 was approximately $50,000 and $27,000, respectively. If the Company so elects, AIG is obligated to&#13;pay the Company an amount equal to 100% of the sinking fund account balance in return for complete release of liability from both&#13;the Company and any applicable regulatory agency using this policy as an instrument to comply with financial assurance requirements.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Letter of Credits and Bonding Requirements&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;From time to time, the Company is required&#13;to post standby letters of credit and various bonds to support contractual obligations to customers and other obligations, including&#13;facility closures. At March 31, 2018, the total amount of standby letters of credit outstanding totaled approximately $2,660,000&#13;and the total amount of bonds outstanding totaled approximately $8,767,000.&lt;/p&gt;</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>
    <us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;10.&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Discontinued Operations &lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company&amp;#8217;s discontinued operations&#13;consist of all our subsidiaries included in our Industrial Segment: (1) subsidiaries divested in 2011 and prior, (2) two previously&#13;closed locations, and (3) our PFSG facility which is currently undergoing closure, subject to final regulatory approval.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company&amp;#8217;s discontinued operations&#13;had net losses of $157,000 and $131,000 for the three months ended March 31, 2018 and 2017 (net of taxes of $0 for each period).&#13;The losses were primarily due to costs incurred in the administration and continued monitoring of our discontinued operations.&#13;The Company&amp;#8217;s discontinued operations had no revenues for each of the periods noted above.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table presents the major class&#13;of assets of discontinued operations as of March 31, 2018 and December 31, 2017.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;(Amounts in Thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;December 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Current assets&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="width: 58%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Other assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;94&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;89&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Total current assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;94&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;89&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Long-term assets&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Property, plant and equipment, net &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;81&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;81&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Other assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;176&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;195&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Total long-term assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;257&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;276&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Total assets&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;351&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;365&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Current liabilities&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accounts payable&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;8&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accrued expenses and other liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;262&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;265&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Environmental liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;619&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;632&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Total current liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;892&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;905&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Long-term liabilities&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Closure liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;122&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;120&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Environmental liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;229&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;239&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Total long-term liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;351&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;359&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Total liabilities&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,243&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,264&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 63pt; text-align: justify; text-indent: -9pt"&gt;&lt;sup&gt;&amp;#160;&lt;/sup&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 67px; text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 19px; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;net of accumulated depreciation of $10,000 for each period presented.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 63pt; text-align: justify; text-indent: -9pt"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company&amp;#8217;s discontinued operations&#13;include a note receivable in the amount of approximately $375,000 recorded in May 2016 resulting from the sale of property at&#13;our Perma-Fix of Michigan, Inc. subsidiary. This note requires 60 equal monthly installment payments by the buyer of approximately&#13;$7,250 (which includes interest). At March 31, 2018, the outstanding amount on this note receivable totaled approximately $250,000,&#13;of which approximately $74,000 is included in &amp;#8220;Current assets related to discontinued operations&amp;#8221; and approximately&#13;$176,000 is included in &amp;#8220;Other assets related to discontinued operations&amp;#8221; in the accompanying Consolidated Balance&#13;Sheets.&lt;/p&gt;</us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock>
    <us-gaap:IncomeTaxDisclosureTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;12.&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Income Taxes&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Company uses an estimated annual effective&#13;tax rate, which is based on expected annual income, statutory tax rates and tax planning opportunities available in the various&#13;jurisdictions in which the Company operates, to determine its quarterly provision for income taxes.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Income tax expenses were $51,000 and $81,000&#13;for continuing operations for the three months ended March 31, 2018 and the corresponding period of 2017, respectively. The Company&amp;#8217;s&#13;effective tax rate was approximately (16.8%) for the three months ended March 31, 2018 as compared to a tax rate of approximately&#13;(13.6%) for the corresponding period of 2017.&lt;/p&gt;</us-gaap:IncomeTaxDisclosureTextBlock>
    <us-gaap:CompensationAndEmployeeBenefitPlansTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;13.&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 12pt Times New Roman, Times, Serif"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;&lt;u&gt;Management Incentive Plans (&amp;#8220;MIPs&amp;#8221;)&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;On January 18, 2018, the Company&amp;#8217;s Board&#13;and Compensation and Stock Option Committee (the &amp;#8220;Compensation Committee&amp;#8221;) approved individual MIPs for the (&amp;#8220;CEO&amp;#8221;),&#13;Chief Financial Officer (&amp;#8220;CFO&amp;#8221;), and Executive Vice President (&amp;#8220;EVP&amp;#8221;) of Strategic Initiatives. Each MIP&#13;is effective January 1, 2018 and applicable for the year ended December 31, 2018. Each MIP provides guidelines for the calculation&#13;of annual cash incentive based compensation, subject to Compensation Committee oversight and modification. Each MIP awards cash&#13;compensation based on achievement of performance thresholds, with the amount of such compensation established as a percentage&#13;of the executive&amp;#8217;s annual 2018 base salary on the approval date of the MIP. The potential target performance compensation&#13;ranges from 5% to 100% of the 2018 base salary for the CEO ($13,350 to $267,000), 5% to 100% of the 2018 base salary for the CFO&#13;($11,475 to $229,494), and 5% to 100% of the 2018 base salary for the EVP of Strategic Initiatives ($11,170 to $223,400).&lt;/p&gt;</us-gaap:CompensationAndEmployeeBenefitPlansTextBlock>
    <us-gaap:SubsequentEventsTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;14. &lt;u&gt;Subsequent Events&lt;/u&gt;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;M&amp;#38;EC Series B Preferred Stock&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;&amp;#160;&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The Series B Preferred Stock (the &amp;#8220;Series&#13;B Preferred Stock&amp;#8221;) of the Company&amp;#8217;s consolidated subsidiary, M&amp;#38;EC, is non-voting and non-convertible, has a $1.00&#13;liquidation preference per share and may be redeemed at the option and sole discretion of M&amp;#38;EC at any time, and from time to&#13;time, from and after one year from the date of issuance of the Series B Preferred Stock for the purchase price of $1.00. Holders&#13;of shares of M&amp;#38;EC Series B Preferred Stock are entitled to receive, when, as and if declared by M&amp;#38;EC&amp;#8217;s board of directors&#13;out of funds legally available for payment, cumulative dividends at the rate per annum of 5% per share on the liquidation preference&#13;of $1.00 per share of Series B Preferred Stock. Dividends on the Series B Preferred Stock shall accrue without interest beginning&#13;one year from the date of original issuance (June 25, 2001), and shall be payable in cash, if, when, and as declared by M&amp;#38;EC&#13;board, quarterly each year commencing on the first dividend due date following the expiration of one year from the date of original&#13;issuance. On April 24, 2018, the Company announced a private exchange offer (&amp;#8220;Exchange Offer&amp;#8221;), to all holders of the&#13;M&amp;#38;EC Series B Preferred Stock , to exchange, for every share of Series B Preferred Stock tendered, (a) 0.1050805 shares of&#13;newly issued common stock of the Company, par value $.001 per share (&amp;#8220;Common Stock&amp;#8221;), and (b) cash in lieu of fractional&#13;shares of Common Stock that would otherwise be issuable to the tendering holder of Series B Preferred Stock, in an amount equal&#13;to such fractional share of Common Stock multiplied by the closing price per share of the Common Stock on the last trading day&#13;immediately preceding the expiration date of the Exchange Offer. The Exchange Offer is being made on an all-or-none basis, for&#13;all 1,284,730 shares of Series B Preferred Stock outstanding and has an expiration date of May 30, 2018. Assuming all currently&#13;outstanding shares of Series B Preferred Stock are tendered for exchange and not validly withdrawn, the Company would issue an&#13;amount of its shares of Common Stock not to exceed 135,000. The Company owns 100% of the voting capital stock of M&amp;#38;EC. If the&#13;Exchange Offer is consummated, holders of the M&amp;#38;EC Series B Preferred Stock would forfeit all rights of a holder of Series&#13;B Preferred Shares, including the right to receive quarterly cash dividends, and the rights to the cumulative accrued and unpaid&#13;dividends with M&amp;#38;EC Series B Preferred Stock in the amount of approximately $1,011,000 as of April 1, 2018. M&amp;#38;EC Board&#13;has never declared dividends on the Series B Preferred Stock and our credit facility prohibits the payment of cash dividends without&#13;the lender&amp;#8217;s consent.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The shares of Company common stock to be issued&#13;in exchange for shares of M&amp;#38;EC&amp;#8217;s Series B Preferred Stock will be issued pursuant to an exemption from registration under&#13;the Securities Act of 1933, as amended, and, as a result, will be considered restricted securities that have restrictions on transferability.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;This discussion as to an exchange offer does&#13;not constitute an offer or an invitation by the Company to participate in the exchange offer in any manner.&lt;/p&gt;</us-gaap:SubsequentEventsTextBlock>
    <us-gaap:ScheduleOfProspectiveAdoptionOfNewAccountingPronouncementsTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In accordance with Topic 606 requirements,&#13;the disclosure of the impact of adoption of Topic 606 on our unaudited Consolidated Balance Sheets, Consolidated Statement of Operations,&#13;and Consolidated Statement of Comprehensive Income was as follows (in thousands):&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Consolidated Balance Sheet&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balances Before&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Adoption of&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Effect of Change&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;As Reported&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Higher/(Lower)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;LIABILITIES AND STOCKHOLDERS&amp;#8217; EQUITY&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Current liabilities:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 41%"&gt;&lt;font style="font-size: 10pt"&gt;Disposal/transportation accrual&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,478&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,003&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(525&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Deferred revenue&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;4,620&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;5,507&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(887&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Stockholders&amp;#8217; Equity:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accumulated deficit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(78,074&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(78,028&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Consolidated Statement of Operations&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;For the three months ended March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balances Before&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Adoption of&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Effect of Change&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;As Reported&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Higher/(Lower)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 41%"&gt;&lt;font style="font-size: 10pt"&gt;Revenues&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 16%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;12,773&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(115&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Cost of goods sold&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;9,337&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;9,406&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(69&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Income from continuing operations, net of taxes&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;253&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;299&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income attributable to Perma-Fix Services, Inc. common stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;136&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;182&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted:&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Continuing operations&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.02&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.02&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8213; &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Net income per common shares&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;.01&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;&amp;#8213; &lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Consolidated Statement of Comprehensive Income&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;For the three months ended March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;As Reported&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Balances Before Adoption of&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt"&gt;Topic 606&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;Effect of Change Higher/(Lower)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 55%"&gt;&lt;font style="font-size: 10pt"&gt;Net income&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;96&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;142&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 12%; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;128&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;174&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(46&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfProspectiveAdoptionOfNewAccountingPronouncementsTableTextBlock>
    <us-gaap:DisaggregationOfRevenueTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The following tables present&#13;further disaggregation of our revenues by different categories for our Services and Treatment Segments:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Three Months Ended&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Three Months Ended&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Revenue by Contract Type&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;March 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(In thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 40%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Fixed price&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;8,959&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;90&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;9,049&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;10,034&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;98&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;10,132&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Cost reimbursement&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Time and materials&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,609&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,609&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,575&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,575&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;8,959&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,699&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;10,034&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,673&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;12,707&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; 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   &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;9,654&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;7,371&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,068&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;9,439&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Domestic commercial&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,423&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;402&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,825&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,663&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;519&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,182&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Foreign government&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;153&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;153&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;65&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;65&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Foreign commercial&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;26&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;26&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;&amp;#8213;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;21&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;21&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;8,959&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;3,699&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;10,034&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;2,673&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;12,707&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:DisaggregationOfRevenueTableTextBlock>
    <us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;The following table represents&#13;changes in our contract assets and contract liabilities balances:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(In thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;January 1, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Year-to-date&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt; color: black"&gt;Change ($)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Year-to-date&lt;/font&gt;&lt;br /&gt;&#13;&lt;font style="font-size: 10pt; color: black"&gt;Change (%)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;&lt;b&gt;Contract assets&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="width: 36%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;Account receivables, net of allowance&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 13%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;4,762&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 13%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;7,940&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 13%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(3,178&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 13%; text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(40.0&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&lt;font style="font-size: 10pt; color: black"&gt;)%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Unbilled receivables - current&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;4,574&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;4,547&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;27&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;0.6&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Unbilled receivables - non-current&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;92&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;184&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(92&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(50.0&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;)%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;&lt;b&gt;Contract liabilities&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;Deferred revenue&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;4,620&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;5,083&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(463&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt; color: black"&gt;(9.1&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt; color: black"&gt;)%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock>
    <us-gaap:ScheduleOfChangeInAssetRetirementObligationTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following reflects changes to the closure&#13;liabilities for the M&amp;#38;EC facility from year end 2017:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;Amounts in thousands&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 77%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Balance as of December 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 20%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;2,791&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accretion expense&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;19&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Payments&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;(946&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Balance as of March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,864&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfChangeInAssetRetirementObligationTableTextBlock>
    <PESI:DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table presents the major class&#13;of assets of discontinued operations as of March 31, 2018 and December 31, 2017.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;(Amounts in Thousands)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;March 31, 2018&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"&gt;&lt;font style="font-size: 10pt"&gt;December 31, 2017&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Current assets&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="width: 58%; padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Other assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;94&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; border-bottom: black 1.5pt solid"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 18%; border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;89&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Total current assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;94&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;89&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Long-term assets&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Property, plant and equipment, net &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;81&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;81&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Other assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;176&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;195&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Total long-term assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;257&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;276&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Total assets&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;351&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;365&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Current liabilities&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accounts payable&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;11&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;8&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Accrued expenses and other liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;262&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;265&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Environmental liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;619&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;632&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Total current liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;892&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;905&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Long-term liabilities&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 10pt"&gt;Closure liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;122&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;120&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&lt;font style="font-size: 10pt"&gt;Environmental liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;229&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;239&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; padding-left: 10pt"&gt;&lt;font style="font-size: 10pt"&gt;Total long-term liabilities&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;351&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1.5pt solid; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;359&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;font style="font-size: 10pt"&gt;&lt;b&gt;Total liabilities&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,243&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double"&gt;&lt;font style="font-size: 10pt"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 2.25pt double; text-align: right"&gt;&lt;font style="font-size: 10pt"&gt;1,264&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 63pt; text-align: justify; text-indent: -9pt"&gt;&lt;sup&gt;&amp;#160;&lt;/sup&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 67px; text-align: justify"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 19px; text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify"&gt;&lt;font style="font-size: 10pt"&gt;net of accumulated depreciation of $10,000 for each period presented.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</PESI:DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock>
    <us-gaap:SegmentReportingDisclosureTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; font: 11pt/107% Calibri, Helvetica, Sans-Serif"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;b&gt;11.&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="font: 11pt/107% Calibri, Helvetica, Sans-Serif"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;b&gt;&lt;u&gt;Operating Segments&lt;/u&gt;&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In accordance with ASC 280, &amp;#8220;Segment&#13;Reporting&amp;#8221;, the Company defines an operating segment as a business activity: (a) from which we may earn revenue and incur&#13;expenses; (2) whose operating results are regularly reviewed by the chief operating decision maker (&amp;#8220;CODM&amp;#8221;) to make&#13;decisions about resources to be allocated to the segment and assess its performance; and (3) for which discrete financial information&#13;is available.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 408.75pt"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Our reporting segments are defined as&#13;below:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;TREATMENT SEGMENT, which includes:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 24px; text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;-&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;nuclear, low-level radioactive, mixed waste (containing both hazardous and low-level radioactive constituents), hazardous and non-hazardous waste treatment, processing and disposal services primarily through three uniquely licensed and permitted treatment and storage facilities; and&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;-&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;research and development (&amp;#8220;R&amp;#38;D&amp;#8221;) activities to identify, develop and implement innovative waste processing techniques for problematic waste streams.&amp;#160;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 11pt/normal Calibri, Helvetica, Sans-Serif; margin: 0 0 6pt"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;SERVICES SEGMENT, which includes:&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; text-align: justify; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 24px; text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;-&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Technical services, which include:&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 72px; text-align: justify; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 24px; text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#9675;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;professional radiological measurement and site survey of large government and commercial installations using advanced methods, technology and engineering;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#9675;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;integrated Occupational Safety and Health services including industrial hygiene (&amp;#8220;IH&amp;#8221;) assessments; hazardous materials surveys, e.g., exposure monitoring; lead and asbestos management/abatement oversight; indoor air quality evaluations; health risk and exposure assessments; health &amp;#38; safety plan/program development, compliance auditing and training services; and Occupational Safety and Health Administration (&amp;#8220;OSHA&amp;#8221;) citation assistance;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#9675;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;global technical services providing consulting, engineering, project management, waste management, environmental, and decontamination and decommissioning field, technical, and management personnel and services to commercial and government customers; and&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#9675;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;on-site waste management services to commercial and governmental customers.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in; color: #1F497D"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 24px; text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif; color: #1F497D"&gt;-&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Nuclear services, which include:&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 72px; text-align: justify; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 24px; text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#9675;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;technology-based services including engineering, decontamination and decommissioning (&amp;#8220;D&amp;#38;D&amp;#8221;), specialty services and construction, logistics, transportation, processing and disposal;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#9675;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;remediation of nuclear licensed and federal facilities and the remediation cleanup of nuclear legacy sites. Such services capability includes: project investigation; radiological engineering; partial and total plant D&amp;#38;D; facility decontamination, dismantling, demolition, and planning; site restoration; logistics; transportation; and emergency response; and&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 24px; text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif; color: #1F497D"&gt;-&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;A company owned equipment calibration and maintenance laboratory that services, maintains, calibrates, and sources (i.e., rental) health physics, IH and customized nuclear, environmental, and occupational safety and health (&amp;#8220;NEOSH&amp;#8221;) instrumentation.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;MEDICAL SEGMENT reporting includes:&#13;R&amp;#38;D costs for the new medical isotope production technology from our majority-owned Polish subsidiary, PF Medical. The Medical&#13;Segment has not generated any revenue as it continues to be primarily in the R&amp;#38;D stage. All costs incurred for the Medical&#13;Segment are reflected within R&amp;#38;D in the accompanying Consolidated Statements of Operations.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Our reporting segments exclude our corporate&#13;headquarters and our discontinued operations (see &amp;#8220;Note 10 &amp;#8211; Discontinued Operations&amp;#8221;) which do not generate&#13;revenues.&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The table below presents certain financial&#13;information of our operating segments for the three months ended March 31, 2018 and 2017 (in thousands).&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Segment Reporting for the Quarter&#13;Ended March 31, 2018&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Medical&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segments Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Corporate &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Consolidated Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 35%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Revenue from external customers&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;8,959&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;3,699&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 10%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Intercompany revenues&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;213&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;14&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;227&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Gross profit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;2,780&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;541&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;3,321&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;3,321&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Research and development&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;114&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;100&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;214&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;18&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;232&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Interest income&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13; 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   &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;49&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;49&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Interest expense&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(1&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13; 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   &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(9&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Depreciation and amortization&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;240&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;123&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;363&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;9&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;372&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segment income (loss) before income taxes&lt;/font&gt;&lt;/td&gt;&#13; 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   &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&amp;#160;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,558&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(1,254&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;304&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Income tax expense&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(51&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(51&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(51&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segment income (loss)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,693&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(86&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(100&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,507&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(1,254&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;253&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Expenditures for segment assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;220&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;25&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;245&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;3&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;248&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Segment Reporting for the Quarter Ended March 31, 2017&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Medical&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segments Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Corporate &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Consolidated Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 35%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Revenue from external customers&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;10,034&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;2,673&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;12,707&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 10%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;12,707&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Intercompany revenues&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;16&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;3&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;19&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Gross profit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;2,687&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;32&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;2,719&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;2,719&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Research and development&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;181&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;200&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;381&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;8&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;389&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Interest income&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;35&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;35&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Interest expense&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(8&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(1&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(9&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(91&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(100&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Interest expense-financing fees&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(9&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(9&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Depreciation and amortization&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,009&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;136&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,145&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;10&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,155&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segment income (loss) before income taxes&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,602&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(707&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(200&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;695&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(1,289&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(594&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Income tax expense&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(80&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(80&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(1&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(81&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segment income (loss)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,522&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(707&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(200&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;615&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(1,290&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(675&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Expenditures for segment assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;15&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;7&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;22&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;22&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 24px; text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: justify; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Amounts reflect the activity for corporate headquarters not included in the segment information.&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: -9pt"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;</us-gaap:SegmentReportingDisclosureTextBlock>
    <us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock contextRef="From2018-01-01to2018-03-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The table below presents certain financial&#13;information of our operating segments for the three months ended March 31, 2018 and 2017 (in thousands).&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Segment Reporting for the Quarter&#13;Ended March 31, 2018&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Medical&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segments Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Corporate &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Consolidated Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: center; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 35%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Revenue from external customers&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;8,959&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;3,699&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;12,658&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 10%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13; 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   &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Gross profit&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;2,780&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13; 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   &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;3,321&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Research and development&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13; 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   &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;214&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;18&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;232&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; 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   &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Depreciation and amortization&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;240&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;123&lt;/font&gt;&lt;/td&gt;&#13; 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   &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;372&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segment income (loss) before income taxes&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,744&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(86&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(100&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&amp;#160;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,558&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(1,254&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;304&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Income tax expense&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(51&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(51&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(51&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segment income (loss)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,693&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(86&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(100&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,507&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(1,254&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;253&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Expenditures for segment assets&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;220&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;25&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;245&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;3&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;248&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Segment Reporting for the Quarter Ended March 31, 2017&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Treatment&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Medical&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Segments Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Corporate &lt;sup&gt;(1)&lt;/sup&gt;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Consolidated Total&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td style="width: 35%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;Revenue from external customers&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;10,034&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;2,673&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 7%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;12,707&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;$&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 10%; text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 1%; line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13; 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   &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(91&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;(100&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;)&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; 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   &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;136&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;&amp;#8212;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right; line-height: 107%"&gt;&lt;font style="font: 10pt Times New Roman, Times, Serif"&gt;1,145&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="line-height: 107%"&gt;&amp;#160;&lt;/td&gt;&#13; 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    <PESI:DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment contextRef="From2016-05-01to2016-05-31_custom_PermaFixOfMichiganIncMember" unitRef="USD" decimals="0">7250</PESI:DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment>
    <PESI:SignificantPaymentTerms contextRef="From2018-01-01to2018-03-31">P30D</PESI:SignificantPaymentTerms>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization contextRef="From2018-01-01to2018-03-31" unitRef="USD" decimals="-3">10000</us-gaap:DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization contextRef="From2017-01-01to2017-12-31" unitRef="USD" decimals="-3">10000</us-gaap:DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization>
    <us-gaap:ConversionOfStockDescription contextRef="From2018-04-23to2018-04-24_us-gaap_SubsequentEventMember_us-gaap_SeriesBPreferredStockMember">On April 24, 2018, the Company announced a private exchange offer (&#147;Exchange Offer&#148;), to all holders of the M&amp;EC Series B Preferred Stock , to exchange, for every share of Series B Preferred Stock tendered, (a) 0.1050805 shares of newly issued common stock of the Company, par value $.001 per share (&#147;Common Stock&#148;), and (b) cash in lieu of fractional shares of Common Stock that would otherwise be issuable to the tendering holder of Series B Preferred Stock, in an amount equal to such fractional share of Common Stock multiplied by the closing price per share of the Common Stock on the last trading day immediately preceding the expiration date of the Exchange Offer. The Exchange Offer is being made on an all-or-none basis, for all 1,284,730 shares of Series B Preferred Stock outstanding and has an expiration date of May 30, 2018.</us-gaap:ConversionOfStockDescription>
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    <element id="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" name="DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage" name="DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage" name="DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount" name="DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount" name="DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends" name="QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_IntercompanyRevenues" name="IntercompanyRevenues" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" name="DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment" name="DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_SignificantPaymentTerms" name="SignificantPaymentTerms" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CommonStockHeldInTreasuryMember" name="CommonStockHeldInTreasuryMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_NoncontrollingInterestSubsidiaryMember" name="NoncontrollingInterestSubsidiaryMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_SoftwareMember" name="SoftwareMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PermitMember" name="PermitMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TwoThousandThreeOutsideDirectorsStockPlanMember" name="TwoThousandThreeOutsideDirectorsStockPlanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_IncentiveStockOptionsMember" name="IncentiveStockOptionsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TwoThousandTenStockOptionPlanMember" name="TwoThousandTenStockOptionPlanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_The2010StockOptionPlanMember" name="The2010StockOptionPlanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DirectorStockOptionsMember" name="DirectorStockOptionsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_The2003OutsideDirectorsStockPlanMember" name="The2003OutsideDirectorsStockPlanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_RevisedLoanAgreementMember" name="RevisedLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PNCBankMember" name="PNCBankMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TermLoanMember" name="TermLoanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_AmendedLoanAgreementMember" name="AmendedLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_AmendmentToTheRevisedLoanAgreementMember" name="AmendmentToTheRevisedLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_RevolvingCreditMember" name="RevolvingCreditMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_AfterMarch232017ButPriorToOrOnMarch232018Member" name="AfterMarch232017ButPriorToOrOnMarch232018Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_AfterMarch232018ButPriorToOrOnMarch232019Member" name="AfterMarch232018ButPriorToOrOnMarch232019Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_AfterMarch232019Member" name="AfterMarch232019Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_OnOrBeforeMarch232017Member" name="OnOrBeforeMarch232017Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_MANDECMember" name="MANDECMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_AmericanInternationalGroupIncMember" name="AmericanInternationalGroupIncMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PermaFixNorthwestRichlandIncMember" name="PermaFixNorthwestRichlandIncMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CreditFacilitySecuredByABondMember" name="CreditFacilitySecuredByABondMember" abstract="true" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_StandbyLetterOfCreditForNewBondingMechanismMember" name="StandbyLetterOfCreditForNewBondingMechanismMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PFMIMember" name="PFMIMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CurrentAssetsRelatedToDiscontinuedOperationsMember" name="CurrentAssetsRelatedToDiscontinuedOperationsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_OtherAssetsRelatedToDiscontinuedOperationsMember" name="OtherAssetsRelatedToDiscontinuedOperationsMember" abstract="true" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_NotHeldForSaleMember" name="NotHeldForSaleMember" abstract="true" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TreatmentMember" name="TreatmentMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ServicesMember" name="ServicesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_MedicalMember" name="MedicalMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_SegmentsTotalMember" name="SegmentsTotalMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_MrClimacoMember" name="MrClimacoMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ExecutiveVicePresidentOfPfMedicalMember" name="ExecutiveVicePresidentOfPfMedicalMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TwoThousandSeventeenStockOptionPlanMember" name="TwoThousandSeventeenStockOptionPlanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_NonQualifiedStockOptionsAndIncentiveStockOptionsMember" name="NonQualifiedStockOptionsAndIncentiveStockOptionsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TenPercentOfStockholderMember" name="TenPercentOfStockholderMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_NonQualifiedStockOptionsMember" name="NonQualifiedStockOptionsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LouisFCentofantiMember" name="LouisFCentofantiMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_MrMarkDuffMember" name="MrMarkDuffMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_MrBenNaccaratoMember" name="MrBenNaccaratoMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_RobertFergusonMember" name="RobertFergusonMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_MrRobertFergusonMember" name="MrRobertFergusonMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_JanuaryTwentySevenTwoThousandEighteenMember" name="JanuaryTwentySevenTwoThousandEighteenMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_JanuaryTwentySevenTwoThousandNineteenMember" name="JanuaryTwentySevenTwoThousandNineteenMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_JanuaryTwentySevenTwoThousandTwentyOneMember" name="JanuaryTwentySevenTwoThousandTwentyOneMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_EmployeeStockOptionGrantedMember" name="EmployeeStockOptionGrantedMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_OutsideDirectorStockOptionsGrantedMember" name="OutsideDirectorStockOptionsGrantedMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PermaFixOfMichiganIncMember" name="PermaFixOfMichiganIncMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DrLouisCentofantiMember" name="DrLouisCentofantiMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_BenNaccaratoMember" name="BenNaccaratoMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_RobertLFergusonMember" name="RobertLFergusonMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DefiniteLivedIntangibleAssetsMember" name="DefiniteLivedIntangibleAssetsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ForeignSubsidiariesMember" name="ForeignSubsidiariesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_OfficeFurnitureAndEquipmentMember" name="OfficeFurnitureAndEquipmentMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_FederalGovernmentMember" name="FederalGovernmentMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PSCMetalIncMember" name="PSCMetalIncMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CustomerOneMember" name="CustomerOneMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CustomerTwoMember" name="CustomerTwoMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_MECMember" name="MECMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DSSIMember" name="DSSIMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PFMedicalMember" name="PFMedicalMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_VicePresidentOfInformationSystemsMember" name="VicePresidentOfInformationSystemsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DrDavidCentofantiMember" name="DrDavidCentofantiMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_RobertFregusonAndWilliamLampsonLendersMember" name="RobertFregusonAndWilliamLampsonLendersMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_AdvisoryServicesMember" name="AdvisoryServicesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PermitsMember" name="PermitsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TwoThousandThreeOutsiadeDirectorsStockPlanMember" name="TwoThousandThreeOutsiadeDirectorsStockPlanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ElectionMember" name="ElectionMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ReelectionMember" name="ReelectionMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_OfficersAndEmployeesMember" name="OfficersAndEmployeesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_EmployeesMember" name="EmployeesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TwoThousandThreeOutsiadeDirectorsStockOptionPlanMember" name="TwoThousandThreeOutsiadeDirectorsStockOptionPlanMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PortionOfDirectorFeeEarnedInCommonStockMember" name="PortionOfDirectorFeeEarnedInCommonStockMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_RightPlaNMember" name="RightPlaNMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TwoLendersMember" name="TwoLendersMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PermaFixOfDaytonIncPermaFixOfMichiganInMember" name="PermaFixOfDaytonIncPermaFixOfMichiganInMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PFDMember" name="PFDMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PFMMember" name="PFMMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PFSGMember" name="PFSGMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_RevolvingCreditandTermLoanAgreementMember" name="RevolvingCreditandTermLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LenderMember" name="LenderMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PromissoryNoteMember" name="PromissoryNoteMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_RobertFergusonandWilliamLampsonMember" name="RobertFergusonandWilliamLampsonMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CommonStockOneMember" name="CommonStockOneMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_NewDirectorMember" name="NewDirectorMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_SixReelectedDirectorsMember" name="SixReelectedDirectorsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_SevenReElectedDirectorsMember" name="SevenReElectedDirectorsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PermaFixOfDaytonIncMember" name="PermaFixOfDaytonIncMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_PFSGandPFDMember" name="PFSGandPFDMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_MedicalSegmentMember" name="MedicalSegmentMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TaxCutsAndJobsActsMember" name="TaxCutsAndJobsActsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember" name="BalancesBeforeAdoptionOfTopicSixHundredAndSixMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DomesticGovernmentMember" name="DomesticGovernmentMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DomesticCommercialMember" name="DomesticCommercialMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ForeignGovernmentMember" name="ForeignGovernmentMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_FixedPriceMember" name="FixedPriceMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ForeignCommercialMember" name="ForeignCommercialMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CostReimbursementMember" name="CostReimbursementMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_TimeandMaterialsMember" name="TimeandMaterialsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_EastTennesseeMaterialsAndEnergyCorporationMember" name="EastTennesseeMaterialsAndEnergyCorporationMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_JanuaryOneTwoThousandEighteenMember" name="JanuaryOneTwoThousandEighteenMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_YearToDateChangesMember" name="YearToDateChangesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
</schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>8
<FILENAME>pesi-20180331_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: 4.22b -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: http://www.novaworks.co -->
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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>10
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<DESCRIPTION>XBRL LABEL FILE
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xml:lang="en-US">Employee Stock Options [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="pesi-20180331.xsd#PESI_TwoThousandThreeOutsideDirectorsStockPlanMember" xlink:label="PESI_TwoThousandThreeOutsideDirectorsStockPlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandThreeOutsideDirectorsStockPlanMember" xlink:to="PESI_TwoThousandThreeOutsideDirectorsStockPlanMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TwoThousandThreeOutsideDirectorsStockPlanMember_lbl" xml:lang="en-US">2003 Outside Directors Stock Plan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="us-gaap_TitleOfIndividualAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TitleOfIndividualAxis" xlink:to="us-gaap_TitleOfIndividualAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TitleOfIndividualAxis_lbl" xml:lang="en-US">Title of Individual [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DirectorMember" xlink:label="us-gaap_DirectorMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DirectorMember" xlink:to="us-gaap_DirectorMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DirectorMember_lbl" xml:lang="en-US">New Director [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DirectorStockOptionsMember" xlink:label="PESI_DirectorStockOptionsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DirectorStockOptionsMember" xlink:to="PESI_DirectorStockOptionsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DirectorStockOptionsMember_lbl" xml:lang="en-US">Director Stock Options [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="us-gaap_DebtInstrumentAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentAxis" xlink:to="us-gaap_DebtInstrumentAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xml:lang="en-US">Debt Instrument [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_RevisedLoanAgreementMember" xlink:label="PESI_RevisedLoanAgreementMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RevisedLoanAgreementMember" xlink:to="PESI_RevisedLoanAgreementMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_RevisedLoanAgreementMember_lbl" xml:lang="en-US">Revised Loan Agreement [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityAxis" xlink:label="us-gaap_LineOfCreditFacilityAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityAxis" xlink:to="us-gaap_LineOfCreditFacilityAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityAxis_lbl" xml:lang="en-US">Lender Name [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PNCBankMember" xlink:label="PESI_PNCBankMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PNCBankMember" xlink:to="PESI_PNCBankMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_PNCBankMember_lbl" xml:lang="en-US">PNC Bank [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="pesi-20180331.xsd#PESI_TermLoanMember" xlink:label="PESI_TermLoanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TermLoanMember" xlink:to="PESI_TermLoanMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TermLoanMember_lbl" xml:lang="en-US">Term Loan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableRateAxis" xlink:label="us-gaap_VariableRateAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VariableRateAxis" xlink:to="us-gaap_VariableRateAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_VariableRateAxis_lbl" xml:lang="en-US">Variable Rate [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrimeRateMember" xlink:label="us-gaap_PrimeRateMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrimeRateMember" xlink:to="us-gaap_PrimeRateMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrimeRateMember_lbl" xml:lang="en-US">Prime Rate [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember" xlink:label="us-gaap_LondonInterbankOfferedRateLIBORMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LondonInterbankOfferedRateLIBORMember" xlink:to="us-gaap_LondonInterbankOfferedRateLIBORMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LondonInterbankOfferedRateLIBORMember_lbl" xml:lang="en-US">London Interbank Offered Rate (LIBOR) [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AmendmentToTheRevisedLoanAgreementMember" xlink:label="PESI_AmendmentToTheRevisedLoanAgreementMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AmendmentToTheRevisedLoanAgreementMember" xlink:to="PESI_AmendmentToTheRevisedLoanAgreementMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_AmendmentToTheRevisedLoanAgreementMember_lbl" xml:lang="en-US">Amendment to the Revised Loan Agreement [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_RevolvingCreditMember" xlink:label="PESI_RevolvingCreditMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RevolvingCreditMember" xlink:to="PESI_RevolvingCreditMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_RevolvingCreditMember_lbl" xml:lang="en-US">Revolving Credit [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="us-gaap_StatementScenarioAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementScenarioAxis" xlink:to="us-gaap_StatementScenarioAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementScenarioAxis_lbl" xml:lang="en-US">Scenario [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AfterMarch232017ButPriorToOrOnMarch232018Member" xlink:label="PESI_AfterMarch232017ButPriorToOrOnMarch232018Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AfterMarch232017ButPriorToOrOnMarch232018Member" xlink:to="PESI_AfterMarch232017ButPriorToOrOnMarch232018Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_AfterMarch232017ButPriorToOrOnMarch232018Member_lbl" xml:lang="en-US">After March 23, 2017 But Prior to or on March 23, 2018 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AfterMarch232018ButPriorToOrOnMarch232019Member" xlink:label="PESI_AfterMarch232018ButPriorToOrOnMarch232019Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AfterMarch232018ButPriorToOrOnMarch232019Member" xlink:to="PESI_AfterMarch232018ButPriorToOrOnMarch232019Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_AfterMarch232018ButPriorToOrOnMarch232019Member_lbl" xml:lang="en-US">After March 23, 2018 But Prior to or on March 23, 2019 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AfterMarch232019Member" xlink:label="PESI_AfterMarch232019Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AfterMarch232019Member" xlink:to="PESI_AfterMarch232019Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_AfterMarch232019Member_lbl" xml:lang="en-US">After March 23, 2019 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_OnOrBeforeMarch232017Member" xlink:label="PESI_OnOrBeforeMarch232017Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OnOrBeforeMarch232017Member" xlink:to="PESI_OnOrBeforeMarch232017Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_OnOrBeforeMarch232017Member_lbl" xml:lang="en-US">On or Before March 23, 2017 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CounterpartyNameAxis" xlink:label="us-gaap_CounterpartyNameAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CounterpartyNameAxis" xlink:to="us-gaap_CounterpartyNameAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CounterpartyNameAxis_lbl" xml:lang="en-US">Counterparty Name [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AmericanInternationalGroupIncMember" xlink:label="PESI_AmericanInternationalGroupIncMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AmericanInternationalGroupIncMember" xlink:to="PESI_AmericanInternationalGroupIncMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_AmericanInternationalGroupIncMember_lbl" xml:lang="en-US">American International Group, Inc [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_OutsideDirectorStockOptionsGrantedMember" xlink:label="PESI_OutsideDirectorStockOptionsGrantedMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OutsideDirectorStockOptionsGrantedMember" xlink:to="PESI_OutsideDirectorStockOptionsGrantedMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_OutsideDirectorStockOptionsGrantedMember_lbl" xml:lang="en-US">Outside Director Stock Options Granted [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LegalEntityAxis" xlink:to="dei_LegalEntityAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_LegalEntityAxis_lbl" xml:lang="en-US">Legal Entity [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PermaFixOfMichiganIncMember" xlink:label="PESI_PermaFixOfMichiganIncMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermaFixOfMichiganIncMember" xlink:to="PESI_PermaFixOfMichiganIncMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_PermaFixOfMichiganIncMember_lbl" xml:lang="en-US">Perma-Fix of Michigan, Inc. [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_NoncontrollingInterestSubsidiaryMember" xlink:label="PESI_NoncontrollingInterestSubsidiaryMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NoncontrollingInterestSubsidiaryMember" xlink:to="PESI_NoncontrollingInterestSubsidiaryMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_NoncontrollingInterestSubsidiaryMember_lbl" xml:lang="en-US">Non-controlling Interest in Subsidiary [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PermitsMember" xlink:label="PESI_PermitsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermitsMember" xlink:to="PESI_PermitsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_PermitsMember_lbl" xml:lang="en-US">Permit [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TypeOfArrangementAxis" xlink:label="us-gaap_TypeOfArrangementAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TypeOfArrangementAxis" xlink:to="us-gaap_TypeOfArrangementAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xml:lang="en-US">Type of Arrangement and Non-arrangement Transactions [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:to="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xml:lang="en-US">Adjustments for New Accounting Pronouncements [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingStandardsUpdate201409Member" xlink:label="us-gaap_AccountingStandardsUpdate201409Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingStandardsUpdate201409Member" xlink:to="us-gaap_AccountingStandardsUpdate201409Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountingStandardsUpdate201409Member_lbl" xml:lang="en-US">Adjustment Due to Topic 606 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember" xlink:label="PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember" xlink:to="PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember_lbl" xml:lang="en-US">Balances Before Adoption of Topic 606 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementEarlyAdoptionAxis" xlink:label="us-gaap_NewAccountingPronouncementEarlyAdoptionAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementEarlyAdoptionAxis" xlink:to="us-gaap_NewAccountingPronouncementEarlyAdoptionAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NewAccountingPronouncementEarlyAdoptionAxis_lbl" xml:lang="en-US">New Accounting Pronouncement, Early Adoption [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember" xlink:label="us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember" xlink:to="us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember_lbl" xml:lang="en-US">Effect of Change Higher/(Lower) [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="us-gaap_StatementBusinessSegmentsAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementBusinessSegmentsAxis" xlink:to="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xml:lang="en-US">Segments [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TreatmentMember" xlink:label="PESI_TreatmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TreatmentMember" xlink:to="PESI_TreatmentMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TreatmentMember_lbl" xml:lang="en-US">Treatment [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorCustomersAxis" xlink:label="us-gaap_MajorCustomersAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MajorCustomersAxis" xlink:to="us-gaap_MajorCustomersAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MajorCustomersAxis_lbl" xml:lang="en-US">Major Customers [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DomesticGovernmentMember" xlink:label="PESI_DomesticGovernmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DomesticGovernmentMember" xlink:to="PESI_DomesticGovernmentMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DomesticGovernmentMember_lbl" xml:lang="en-US">Domestic Government [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ServicesMember" xlink:label="PESI_ServicesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ServicesMember" xlink:to="PESI_ServicesMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ServicesMember_lbl" xml:lang="en-US">Services [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DomesticCommercialMember" xlink:label="PESI_DomesticCommercialMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DomesticCommercialMember" xlink:to="PESI_DomesticCommercialMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DomesticCommercialMember_lbl" xml:lang="en-US">Domestic Commercial [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ForeignGovernmentMember" xlink:label="PESI_ForeignGovernmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ForeignGovernmentMember" xlink:to="PESI_ForeignGovernmentMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ForeignGovernmentMember_lbl" xml:lang="en-US">Foreign Government [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="pesi-20180331.xsd#PESI_FixedPriceMember" xlink:label="PESI_FixedPriceMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FixedPriceMember" xlink:to="PESI_FixedPriceMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_FixedPriceMember_lbl" xml:lang="en-US">Fixed Price [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ForeignCommercialMember" xlink:label="PESI_ForeignCommercialMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ForeignCommercialMember" xlink:to="PESI_ForeignCommercialMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ForeignCommercialMember_lbl" xml:lang="en-US">Foreign Commercial [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_CostReimbursementMember" xlink:label="PESI_CostReimbursementMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CostReimbursementMember" xlink:to="PESI_CostReimbursementMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_CostReimbursementMember_lbl" xml:lang="en-US">Cost Reimbursement [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TimeandMaterialsMember" xlink:label="PESI_TimeandMaterialsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TimeandMaterialsMember" xlink:to="PESI_TimeandMaterialsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TimeandMaterialsMember_lbl" xml:lang="en-US">Time and Materials [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByAssetClassAxis" xlink:label="us-gaap_FairValueByAssetClassAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByAssetClassAxis" xlink:to="us-gaap_FairValueByAssetClassAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xml:lang="en-US">Asset Class [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMember" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsMember" xlink:to="us-gaap_FiniteLivedIntangibleAssetsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMember_lbl" xml:lang="en-US">Intangible Assets [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DirectorMember" xlink:to="us-gaap_DirectorMember_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DirectorMember_2_lbl" xml:lang="en-US">Director [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis" xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis" xlink:to="us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis_lbl" xml:lang="en-US">Legal Entity of Counterparty, Type [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_EastTennesseeMaterialsAndEnergyCorporationMember" xlink:label="PESI_EastTennesseeMaterialsAndEnergyCorporationMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EastTennesseeMaterialsAndEnergyCorporationMember" xlink:to="PESI_EastTennesseeMaterialsAndEnergyCorporationMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EastTennesseeMaterialsAndEnergyCorporationMember_lbl" xml:lang="en-US">East Tennessee Materials and Energy Corporation [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardDateAxis" xlink:label="us-gaap_AwardDateAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardDateAxis" xlink:to="us-gaap_AwardDateAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AwardDateAxis_lbl" xml:lang="en-US">Award Date [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_JanuaryOneTwoThousandEighteenMember" xlink:label="PESI_JanuaryOneTwoThousandEighteenMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_JanuaryOneTwoThousandEighteenMember" xlink:to="PESI_JanuaryOneTwoThousandEighteenMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_JanuaryOneTwoThousandEighteenMember_lbl" xml:lang="en-US">January 1, 2018 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_YearToDateChangesMember" xlink:label="PESI_YearToDateChangesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_YearToDateChangesMember" xlink:to="PESI_YearToDateChangesMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_YearToDateChangesMember_lbl" xml:lang="en-US">Year-to-date Change [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ChiefExecutiveOfficerMember" xlink:label="us-gaap_ChiefExecutiveOfficerMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ChiefExecutiveOfficerMember" xlink:to="us-gaap_ChiefExecutiveOfficerMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ChiefExecutiveOfficerMember_lbl" xml:lang="en-US">CEO [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ChiefFinancialOfficerMember" xlink:label="us-gaap_ChiefFinancialOfficerMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ChiefFinancialOfficerMember" xlink:to="us-gaap_ChiefFinancialOfficerMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ChiefFinancialOfficerMember_lbl" xml:lang="en-US">CFO [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExecutiveVicePresidentMember" xlink:label="us-gaap_ExecutiveVicePresidentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ExecutiveVicePresidentMember" xlink:to="us-gaap_ExecutiveVicePresidentMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ExecutiveVicePresidentMember_lbl" xml:lang="en-US">EVP [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="us-gaap_SubsequentEventTypeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeAxis" xlink:to="us-gaap_SubsequentEventTypeAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="us-gaap_SubsequentEventMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventMember" xlink:to="us-gaap_SubsequentEventMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventMember_lbl" xml:lang="en-US">Subsequent Event [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_StatementEquityComponentsAxis_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StatementEquityComponentsAxis_2_lbl" xml:lang="en-US">Class of Stock [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_MedicalMember" xlink:label="PESI_MedicalMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MedicalMember" xlink:to="PESI_MedicalMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_MedicalMember_lbl" xml:lang="en-US">Medical [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_SegmentsTotalMember" xlink:label="PESI_SegmentsTotalMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SegmentsTotalMember" xlink:to="PESI_SegmentsTotalMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_SegmentsTotalMember_lbl" xml:lang="en-US">Segments Total [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateMember" xlink:label="us-gaap_CorporateMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CorporateMember" xlink:to="us-gaap_CorporateMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CorporateMember_lbl" xml:lang="en-US">Corporate [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DocumentAndEntityInformationAbstract" xlink:label="PESI_DocumentAndEntityInformationAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DocumentAndEntityInformationAbstract" xlink:to="PESI_DocumentAndEntityInformationAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DocumentAndEntityInformationAbstract_lbl" xml:lang="en-US">Document And Entity Information</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_TradingSymbol" xlink:label="dei_TradingSymbol" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_TradingSymbol_lbl" xml:lang="en-US">Trading Symbol</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="us-gaap_StatementOfFinancialPositionAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="us-gaap_AssetsAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_AssetsAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsAbstract_lbl" xml:lang="en-US">ASSETS</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="us-gaap_AssetsCurrentAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrentAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xml:lang="en-US">Current assets:</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xml:lang="en-US">Cash</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xml:lang="en-US">Accounts receivable, net of allowance for doubtful accounts of $725 and $720, respectively</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_UnbilledContractsReceivableCurrent" xlink:label="PESI_UnbilledContractsReceivableCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_UnbilledContractsReceivableCurrent" xlink:to="PESI_UnbilledContractsReceivableCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_UnbilledContractsReceivableCurrent_lbl" xml:lang="en-US">Unbilled receivables - current</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryNet" xlink:label="us-gaap_InventoryNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryNet" xlink:to="us-gaap_InventoryNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InventoryNet_lbl" xml:lang="en-US">Inventories</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xml:lang="en-US">Prepaid and other assets</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" xlink:label="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" xlink:to="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_lbl" xml:lang="en-US">Current assets related to discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="us-gaap_AssetsCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AssetsCurrent_lbl" xml:lang="en-US">Total current assets</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:label="us-gaap_PropertyPlantAndEquipmentNetAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:to="us-gaap_PropertyPlantAndEquipmentNetAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNetAbstract_lbl" xml:lang="en-US">Property and equipment:</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_BuildingsAndLand" xlink:label="PESI_BuildingsAndLand" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BuildingsAndLand" xlink:to="PESI_BuildingsAndLand_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_BuildingsAndLand_lbl" xml:lang="en-US">Buildings and land</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MachineryAndEquipmentGross" xlink:label="us-gaap_MachineryAndEquipmentGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MachineryAndEquipmentGross" xlink:to="us-gaap_MachineryAndEquipmentGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MachineryAndEquipmentGross_lbl" xml:lang="en-US">Equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_Vehicles" xlink:label="PESI_Vehicles" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_Vehicles" xlink:to="PESI_Vehicles_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_Vehicles_lbl" xml:lang="en-US">Vehicles</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseholdImprovementsGross" xlink:label="us-gaap_LeaseholdImprovementsGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseholdImprovementsGross" xlink:to="us-gaap_LeaseholdImprovementsGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseholdImprovementsGross_lbl" xml:lang="en-US">Leasehold improvements</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesGross" xlink:label="us-gaap_FurnitureAndFixturesGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FurnitureAndFixturesGross" xlink:to="us-gaap_FurnitureAndFixturesGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FurnitureAndFixturesGross_lbl" xml:lang="en-US">Office furniture and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConstructionInProgressGross" xlink:label="us-gaap_ConstructionInProgressGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConstructionInProgressGross" xlink:to="us-gaap_ConstructionInProgressGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConstructionInProgressGross_lbl" xml:lang="en-US">Construction-in-progress</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="us-gaap_PropertyPlantAndEquipmentGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentGross" xlink:to="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xml:lang="en-US">Total property and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Less accumulated depreciation</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US">Net property and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale_lbl" xml:lang="en-US">Property and equipment related to discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" xlink:to="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract_lbl" xml:lang="en-US">Intangibles and other long term assets:</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_Permits" xlink:label="PESI_Permits" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_Permits" xlink:to="PESI_Permits_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_Permits_lbl" xml:lang="en-US">Permits</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherIntangibleAssetsNet" xlink:label="us-gaap_OtherIntangibleAssetsNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIntangibleAssetsNet" xlink:to="us-gaap_OtherIntangibleAssetsNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIntangibleAssetsNet_lbl" xml:lang="en-US">Other intangible assets - net</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_UnbilledContractsReceivableNoncurrent" xlink:label="PESI_UnbilledContractsReceivableNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_UnbilledContractsReceivableNoncurrent" xlink:to="PESI_UnbilledContractsReceivableNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_UnbilledContractsReceivableNoncurrent_lbl" xml:lang="en-US">Unbilled receivables - non-current</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_FiniteRiskSinkingFund" xlink:label="PESI_FiniteRiskSinkingFund" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FiniteRiskSinkingFund" xlink:to="PESI_FiniteRiskSinkingFund_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_FiniteRiskSinkingFund_lbl" xml:lang="en-US">Finite risk sinking fund</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="us-gaap_OtherAssetsNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrent" xlink:to="us-gaap_OtherAssetsNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xml:lang="en-US">Other assets</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent_lbl" xml:lang="en-US">Other assets related to discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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' EQUITY</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="pesi-20180331.xsd#PESI_DisposalTransportationAccrual" xlink:label="PESI_DisposalTransportationAccrual" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalTransportationAccrual" xlink:to="PESI_DisposalTransportationAccrual_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalTransportationAccrual_lbl" xml:lang="en-US">Disposal/transportation accrual</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="us-gaap_DeferredRevenueCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueCurrent" xlink:to="us-gaap_DeferredRevenueCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredRevenueCurrent_lbl" xml:lang="en-US">Deferred revenue</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts" xlink:label="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts" xlink:to="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts_lbl" xml:lang="en-US">Accrued closure costs - current</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="us-gaap_LongTermDebtCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtCurrent" xlink:to="us-gaap_LongTermDebtCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xml:lang="en-US">Current portion of long-term debt</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_lbl" xml:lang="en-US">Current liabilities related to discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent" xlink:label="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent" xlink:to="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent_lbl" xml:lang="en-US">Accrued closure costs</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="us-gaap_OtherLiabilitiesNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesNoncurrent" xlink:to="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xml:lang="en-US">Other long-term liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="us-gaap_DeferredTaxLiabilitiesNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:to="us-gaap_DeferredTaxLiabilitiesNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxLiabilitiesNoncurrent_lbl" xml:lang="en-US">Deferred tax liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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 portion</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent_lbl" xml:lang="en-US">Long-term liabilities related to discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="us-gaap_LiabilitiesNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesNoncurrent" xlink:to="us-gaap_LiabilitiesNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesNoncurrent_lbl" xml:lang="en-US">Total long-term liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US">Commitments and Contingencies (Note 9)</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityCarryingAmountAttributableToParent" xlink:to="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xml:lang="en-US">Series B Preferred Stock of subsidiary, $1.00 par value; 1,467,396 shares authorized, 1,284,730 shares issued and outstanding, liquidation value $1.00 per share plus accrued and unpaid dividends of $1,011 and $995, respectively</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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' Equity:</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="us-gaap_PreferredStockValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockValue" xlink:to="us-gaap_PreferredStockValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US">Preferred Stock, $.001 par value; 2,000,000 shares authorized, no shares issued and outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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, $.001 par value; 30,000,000 shares authorized; 11,754,697 and 11,738,623 shares issued, respectively; 11,747,055 and 11,730,981 shares outstanding, respectively</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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 deficit</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_lbl" xml:lang="en-US">Accumulated other comprehensive loss</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="us-gaap_TreasuryStockValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockValue" xlink:to="us-gaap_TreasuryStockValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_TreasuryStockValue_lbl" xml:lang="en-US">Less Common Stock in treasury, at cost; 7,642 shares</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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 Perma-Fix Environmental Services, Inc. stockholders' equity</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinorityInterest" xlink:label="us-gaap_MinorityInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MinorityInterest" xlink:to="us-gaap_MinorityInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MinorityInterest_lbl" xml:lang="en-US">Non-controlling interest</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Total stockholders' equity</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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' equity</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementTable_lbl" xml:lang="en-US">Statement [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementLineItems_lbl" xml:lang="en-US">Statement [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Accounts receivable, allowance for doubtful accounts</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityParOrStatedValuePerShare" xlink:to="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl" xml:lang="en-US">Preferred stock of subsidiary, par value</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesAuthorized" xlink:label="us-gaap_TemporaryEquitySharesAuthorized" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquitySharesAuthorized" xlink:to="us-gaap_TemporaryEquitySharesAuthorized_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquitySharesAuthorized_lbl" xml:lang="en-US">Preferred stock of subsidiary, shares authorized</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesIssued" xlink:label="us-gaap_TemporaryEquitySharesIssued" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquitySharesIssued" xlink:to="us-gaap_TemporaryEquitySharesIssued_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquitySharesIssued_lbl" xml:lang="en-US">Preferred stock of subsidiary, shares issued</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesOutstanding" xlink:label="us-gaap_TemporaryEquitySharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquitySharesOutstanding" xlink:to="us-gaap_TemporaryEquitySharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xml:lang="en-US">Preferred stock of subsidiary, shares outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquityLiquidationPreferencePerShare" xlink:label="us-gaap_TemporaryEquityLiquidationPreferencePerShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityLiquidationPreferencePerShare" xlink:to="us-gaap_TemporaryEquityLiquidationPreferencePerShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquityLiquidationPreferencePerShare_lbl" xml:lang="en-US">Preferred stock of subsidiary, liquidation value</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TemporaryEquityAccruedAndUnpaidDividends" xlink:label="PESI_TemporaryEquityAccruedAndUnpaidDividends" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TemporaryEquityAccruedAndUnpaidDividends" xlink:to="PESI_TemporaryEquityAccruedAndUnpaidDividends_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TemporaryEquityAccruedAndUnpaidDividends_lbl" xml:lang="en-US">Preferred stock of subsidiary, accrued and unpaid dividends</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xml:lang="en-US">Preferred stock, par value</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="us-gaap_PreferredStockSharesAuthorized" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US">Preferred stock, shares authorized</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="us-gaap_PreferredStockSharesIssued" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesIssued" xlink:to="us-gaap_PreferredStockSharesIssued_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US">Preferred stock, shares issued</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="us-gaap_PreferredStockSharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesOutstanding" xlink:to="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xml:lang="en-US">Preferred stock, shares outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="us-gaap_TreasuryStockShares" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockShares" xlink:to="us-gaap_TreasuryStockShares_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TreasuryStockShares_lbl" xml:lang="en-US">Treasury stock, shares</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="us-gaap_SalesRevenueNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SalesRevenueNet" xlink:to="us-gaap_SalesRevenueNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SalesRevenueNet_lbl" xml:lang="en-US">Revenues</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="us-gaap_CostOfGoodsSold" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfGoodsSold" xlink:to="us-gaap_CostOfGoodsSold_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CostOfGoodsSold_lbl" xml:lang="en-US">Cost of goods sold</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SellingGeneralAndAdministrativeExpense" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xml:lang="en-US">Selling, general and administrative expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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 development</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets1" xlink:label="us-gaap_GainLossOnDispositionOfAssets1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnDispositionOfAssets1" xlink:to="us-gaap_GainLossOnDispositionOfAssets1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_lbl" xml:lang="en-US">Gain on disposal of property and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US">Income (loss) from operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xml:lang="en-US">Other income (expense):</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeOther" xlink:label="us-gaap_InterestIncomeOther" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestIncomeOther" xlink:to="us-gaap_InterestIncomeOther_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestIncomeOther_lbl" xml:lang="en-US">Interest income</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_InterestExpense_lbl" xml:lang="en-US">Interest expense</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingInterestExpense" xlink:label="us-gaap_FinancingInterestExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancingInterestExpense" xlink:to="us-gaap_FinancingInterestExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_FinancingInterestExpense_lbl" xml:lang="en-US">Interest expense-financing fees</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_lbl" xml:lang="en-US">Income (loss) from continuing operations before taxes</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Income tax expense</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Income (loss) from continuing operations, net of taxes</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_lbl" xml:lang="en-US">Loss from discontinued operations (net of taxes of $0)</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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/totalLabel" xlink:label="us-gaap_ProfitLoss_lbl" xml:lang="en-US">Net income (loss)</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:to="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Net loss attributable to non-controlling interest</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US">Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="us-gaap_EarningsPerShareBasicAndDilutedAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:to="us-gaap_EarningsPerShareBasicAndDilutedAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareBasicAndDilutedAbstract_lbl" xml:lang="en-US">Net income (loss) per common share attributable to Perma-Fix Environmental Services, Inc. stockholders - basic and diluted:</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare" xlink:to="us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare_lbl" xml:lang="en-US">Continuing operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare_lbl" xml:lang="en-US">Discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDiluted" xlink:to="us-gaap_EarningsPerShareBasicAndDiluted_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted_lbl" xml:lang="en-US">Net income (loss) per common share</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xml:lang="en-US">Number of common shares used in computing net income (loss) per share:</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xml:lang="en-US">Basic</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xml:lang="en-US">Diluted</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:to="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_lbl" xml:lang="en-US">Loss from discontinued operations, tax</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:to="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xml:lang="en-US">Statement of Comprehensive Income [Abstract]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfitLoss" xlink:to="us-gaap_ProfitLoss_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProfitLoss_2_lbl" xml:lang="en-US">Net income (loss)</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xml:lang="en-US">Other comprehensive (loss) income:</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_lbl" xml:lang="en-US">Foreign currency translation (loss) gain</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_lbl" xml:lang="en-US">Total other comprehensive (loss) income</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Comprehensive income (loss)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:to="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Comprehensive loss attributable to non-controlling interest</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US">Comprehensive income (loss) attributable to Perma-Fix Environmental Services, Inc. stockholders</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Balance</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="us-gaap_SharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesOutstanding" xlink:to="us-gaap_SharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_SharesOutstanding_lbl" xml:lang="en-US">Balance, shares</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AdoptionOfAccountingStandardsUpdates" xlink:label="PESI_AdoptionOfAccountingStandardsUpdates" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AdoptionOfAccountingStandardsUpdates" xlink:to="PESI_AdoptionOfAccountingStandardsUpdates_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_AdoptionOfAccountingStandardsUpdates_lbl" xml:lang="en-US">Adoption of accounting standards updates (Note 2)</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_lbl" xml:lang="en-US">Foreign currency translation</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xml:lang="en-US">Issuance of Common Stock for services</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xml:lang="en-US">Issuance of Common Stock for services, shares</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:to="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xml:lang="en-US">Stock-Based Compensation</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_3_lbl" xml:lang="en-US">Balance</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesOutstanding" xlink:to="us-gaap_SharesOutstanding_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_SharesOutstanding_2_lbl" xml:lang="en-US">Balance, shares</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Cash flows from operating activities:</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_2_lbl" xml:lang="en-US">Less: loss from discontinued operations, net of taxes of $0</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Income (loss) from continuing operations, net of taxes</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Adjustments to reconcile income (loss) from continuing operations to cash provided by operating activities :</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="us-gaap_DepreciationDepletionAndAmortization" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationDepletionAndAmortization" xlink:to="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xml:lang="en-US">Depreciation and amortization</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:to="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xml:lang="en-US">Amortization of debt issuance costs</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Deferred tax expense</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves" xlink:label="PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves" xlink:to="PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves_lbl" xml:lang="en-US">Provision for (recovery of) bad debt reserves</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets" xlink:label="us-gaap_GainLossOnDispositionOfAssets" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnDispositionOfAssets" xlink:to="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xml:lang="en-US">Gain on disposal of plant, property, and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" xlink:label="us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" xlink:to="us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims_lbl" xml:lang="en-US">Issuance of common stock for services</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ShareBasedCompensationEmployeeAndDirector" xlink:label="PESI_ShareBasedCompensationEmployeeAndDirector" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ShareBasedCompensationEmployeeAndDirector" xlink:to="PESI_ShareBasedCompensationEmployeeAndDirector_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ShareBasedCompensationEmployeeAndDirector_lbl" xml:lang="en-US">Stock-based compensation</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xml:lang="en-US">Changes in operating assets and liabilities of continuing operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xml:lang="en-US">Accounts receivable</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInUnbilledReceivables" xlink:label="us-gaap_IncreaseDecreaseInUnbilledReceivables" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInUnbilledReceivables" xlink:to="us-gaap_IncreaseDecreaseInUnbilledReceivables_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInUnbilledReceivables_lbl" xml:lang="en-US">Unbilled receivables</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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, inventories and other assets</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" xlink:label="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" xlink:to="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_lbl" xml:lang="en-US">Accounts payable, accrued expenses and unearned revenue</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl" xml:lang="en-US">Cash provided by continuing operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:label="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:to="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_lbl" xml:lang="en-US">Cash used in discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Cash provided by operating activities</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Purchases of property and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:to="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_lbl" xml:lang="en-US">Proceeds from sale of plant, property, and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund" xlink:label="PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund" xlink:to="PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund_lbl" xml:lang="en-US">Payment to finite risk sinking fund</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_lbl" xml:lang="en-US">Cash used in investing activities of continuing operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:label="us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:to="us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_lbl" xml:lang="en-US">Cash provided by investing activities of discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Cash used in investing activities</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="us-gaap_RepaymentsOfLinesOfCredit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLinesOfCredit" xlink:to="us-gaap_RepaymentsOfLinesOfCredit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_RepaymentsOfLinesOfCredit_lbl" xml:lang="en-US">Repayments of revolving credit borrowings</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="us-gaap_ProceedsFromLinesOfCredit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromLinesOfCredit" xlink:to="us-gaap_ProceedsFromLinesOfCredit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromLinesOfCredit_lbl" xml:lang="en-US">Borrowing on revolving credit</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Principal repayments of long term debt</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_lbl" xml:lang="en-US">Cash used in financing activities</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectOfExchangeRateOnCash" xlink:label="us-gaap_EffectOfExchangeRateOnCash" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectOfExchangeRateOnCash" xlink:to="us-gaap_EffectOfExchangeRateOnCash_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectOfExchangeRateOnCash_lbl" xml:lang="en-US">Effect of exchange rate changes on cash</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl" xml:lang="en-US">Increase (decrease) in cash</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_2_lbl" xml:lang="en-US">Cash at beginning of period</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_3_lbl" xlink:type="arc" />
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" xlink:to="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl" xml:lang="en-US">Recently Issued Accounting Standards - Not Yet Adopted</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfChangeInAccountingEstimateTextBlock" xlink:label="us-gaap_ScheduleOfChangeInAccountingEstimateTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfChangeInAccountingEstimateTextBlock" xlink:to="us-gaap_ScheduleOfChangeInAccountingEstimateTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfChangeInAccountingEstimateTextBlock_lbl" xml:lang="en-US">Schedule of Cumulative Effect Changes in Consolidated Balance Sheet</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfProspectiveAdoptionOfNewAccountingPronouncementsTableTextBlock" xlink:label="us-gaap_ScheduleOfProspectiveAdoptionOfNewAccountingPronouncementsTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfProspectiveAdoptionOfNewAccountingPronouncementsTableTextBlock" xlink:to="us-gaap_ScheduleOfProspectiveAdoptionOfNewAccountingPronouncementsTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfProspectiveAdoptionOfNewAccountingPronouncementsTableTextBlock_lbl" xml:lang="en-US">Schedule of Impact of Adoption of Topic 606</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:label="us-gaap_DisaggregationOfRevenueTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:to="us-gaap_DisaggregationOfRevenueTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisaggregationOfRevenueTableTextBlock_lbl" xml:lang="en-US">Schedule of Disaggregation of Revenue</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:label="us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:to="us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_lbl" xml:lang="en-US">Schedule of Contract Assets and Liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:to="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl" xml:lang="en-US">Schedule of Finite-Lived Intangible Assets</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:to="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xml:lang="en-US">Schedule of Finite-Lived Intangible Assets, Future Amortization Expense</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:label="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:to="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_lbl" xml:lang="en-US">Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockOptionsRollForwardTableTextBlock" xlink:label="us-gaap_ScheduleOfStockOptionsRollForwardTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfStockOptionsRollForwardTableTextBlock" xlink:to="us-gaap_ScheduleOfStockOptionsRollForwardTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfStockOptionsRollForwardTableTextBlock_lbl" xml:lang="en-US">Schedule of Stock Options Roll Forward</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:to="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:label="us-gaap_ScheduleOfDebtInstrumentsTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:to="us-gaap_ScheduleOfDebtInstrumentsTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDebtInstrumentsTextBlock_lbl" xml:lang="en-US">Schedule of Long-term Debt</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock" xlink:label="us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock" xlink:to="us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_lbl" xml:lang="en-US">Schedule of Change in Asset Retirement Obligation</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" xlink:label="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" xlink:to="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock_lbl" xml:lang="en-US">Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:to="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_lbl" xml:lang="en-US">Schedule of Segment Reporting Information</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:to="us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_lbl" xml:lang="en-US">Increase in accumulated deficit</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLoss_2_lbl" xml:lang="en-US">Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare" xlink:to="us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare_2_lbl" xml:lang="en-US">Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDiluted" xlink:to="us-gaap_EarningsPerShareBasicAndDiluted_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted_2_lbl" xml:lang="en-US">Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfitLoss" xlink:to="us-gaap_ProfitLoss_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ProfitLoss_3_lbl" xml:lang="en-US">Net income</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_2_lbl" xml:lang="en-US">Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_SignificantPaymentTerms" xlink:label="PESI_SignificantPaymentTerms" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SignificantPaymentTerms" xlink:to="PESI_SignificantPaymentTerms_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_SignificantPaymentTerms_lbl" xml:lang="en-US">Significant payment terms</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:to="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xml:lang="en-US">Revenue recognized</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MajorCustomersAxis" xlink:to="us-gaap_MajorCustomersAxis_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_MajorCustomersAxis_2_lbl" xml:lang="en-US">Customer [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Total</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableNet" xlink:label="us-gaap_AccountsReceivableNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNet" xlink:to="us-gaap_AccountsReceivableNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsReceivableNet_lbl" xml:lang="en-US">Account receivables, net of allowance</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnbilledReceivablesCurrent" xlink:label="us-gaap_UnbilledReceivablesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnbilledReceivablesCurrent" xlink:to="us-gaap_UnbilledReceivablesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_UnbilledReceivablesCurrent_lbl" xml:lang="en-US">Unbilled receivables - current</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_UnbilledReceivablesNonCurrent" xlink:label="PESI_UnbilledReceivablesNonCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_UnbilledReceivablesNonCurrent" xlink:to="PESI_UnbilledReceivablesNonCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="PESI_UnbilledReceivablesNonCurrent_lbl" xml:lang="en-US">Unbilled receivables - non-current</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ChangesInAccountReceivablesNetOfAllowancePercentage" xlink:label="PESI_ChangesInAccountReceivablesNetOfAllowancePercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangesInAccountReceivablesNetOfAllowancePercentage" xlink:to="PESI_ChangesInAccountReceivablesNetOfAllowancePercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ChangesInAccountReceivablesNetOfAllowancePercentage_lbl" xml:lang="en-US">Changes in Account receivables, net of allowance, percentage</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ChangeInUnbilledReceivablesCurrentPercentage" xlink:label="PESI_ChangeInUnbilledReceivablesCurrentPercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangeInUnbilledReceivablesCurrentPercentage" xlink:to="PESI_ChangeInUnbilledReceivablesCurrentPercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ChangeInUnbilledReceivablesCurrentPercentage_lbl" xml:lang="en-US">Changes in Unbilled receivables - current, percentage</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ChangesInUnbilledReceivablesNoncurrentPercentage" xlink:label="PESI_ChangesInUnbilledReceivablesNoncurrentPercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangesInUnbilledReceivablesNoncurrentPercentage" xlink:to="PESI_ChangesInUnbilledReceivablesNoncurrentPercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ChangesInUnbilledReceivablesNoncurrentPercentage_lbl" xml:lang="en-US">Changes in Unbilled receivables - non-current, percentage</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ChangesInDeferredRevenuePercentage" xlink:label="PESI_ChangesInDeferredRevenuePercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangesInDeferredRevenuePercentage" xlink:to="PESI_ChangesInDeferredRevenuePercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ChangesInDeferredRevenuePercentage_lbl" xml:lang="en-US">Changes in Deferred revenue, percentage</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentForAmortization" xlink:label="us-gaap_AdjustmentForAmortization" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentForAmortization" xlink:to="us-gaap_AdjustmentForAmortization_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentForAmortization_lbl" xml:lang="en-US">Amortization expense of intangible asset</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Finite-Lived Intangible Asset, Useful Life</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsGross" xlink:to="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xml:lang="en-US">Gross Carrying Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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/2009/role/negatedLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xml:lang="en-US">Accumulated Amortization</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xml:lang="en-US">Finite-Lived Intangible Assets, Net</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xml:lang="en-US">2018 (remaining)</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">2019</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">2020</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">2021</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">2022</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Non-qualified stock options, shares, granted</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Stock options granted contractual term</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xml:lang="en-US">Stock options granted vesting period</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Stock options, grants in period, exercise price</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xml:lang="en-US">Unrecognized compensation cost related to unvested options</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear_lbl" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, remainder of fiscal year</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo_lbl" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year two</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree_lbl" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year three</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour_lbl" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year four</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive_lbl" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year five</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xml:lang="en-US">Allocated share-based compensation expense</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_2_lbl" xml:lang="en-US">Stock issued during period, shares, issued for services</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="us-gaap_IncomeStatementLocationAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementLocationAxis" xlink:to="us-gaap_IncomeStatementLocationAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xml:lang="en-US">Income Statement Location [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_lbl" xml:lang="en-US">Weighted-average fair value per shares</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xml:lang="en-US">Risk -free interest rate</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xml:lang="en-US">Expected volatility of stock</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Dividend yield</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_2_lbl" xml:lang="en-US">Expected option life</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_2_lbl" xml:lang="en-US">Allocated stock-based compensation</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xml:lang="en-US">Shares options outstanding beginning</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">Shares options granted</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xml:lang="en-US">Shares options exercised</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_lbl" xml:lang="en-US">Shares options forfeited/expired</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2_lbl" xml:lang="en-US">Shares options outstanding ending</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xml:lang="en-US">Shares options exercisable</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_lbl" xml:lang="en-US">Shares options vested and expected to be vested</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted average exercise price options outstanding beginning</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_2_lbl" xml:lang="en-US">Weighted average exercise price options granted</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted average exercise price options exercised</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted average exercise price options forfeited/expired</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2_lbl" xml:lang="en-US">Weighted average exercise price options outstanding ending</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted average exercise price options exercisable</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted average exercise price options vested and expected to be vested</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xml:lang="en-US">Weighted average remaining contractual term outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xml:lang="en-US">Weighted average remaining contractual term exercisable</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_lbl" xml:lang="en-US">Weighted average remaining contractual term options vested and expected to be vested</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xml:lang="en-US">Aggregate intrinsic value options outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl" xml:lang="en-US">Aggregate intrinsic value options exercisable</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_lbl" xml:lang="en-US">Aggregate intrinsic value options vested and expected to be vested</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_lbl" xml:lang="en-US">Stock option exercise price per share lower limit</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_lbl" xml:lang="en-US">Stock option exercise price per share upper limit</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="us-gaap_IncomeLossFromContinuingOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperations" xlink:to="us-gaap_IncomeLossFromContinuingOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperations_lbl" xml:lang="en-US">Income (loss) from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_3_lbl" xml:lang="en-US">Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="us-gaap_EarningsPerShareBasic" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasic" xlink:to="us-gaap_EarningsPerShareBasic_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xml:lang="en-US">Basic Income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="us-gaap_EarningsPerShareDiluted" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareDiluted" xlink:to="us-gaap_EarningsPerShareDiluted_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xml:lang="en-US">Diluted income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2_lbl" xml:lang="en-US">Basic weighted average shares outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:to="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_lbl" xml:lang="en-US">Add: dilutive effect of stock options</link:label>
      <link: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/totalLabel" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2_lbl" xml:lang="en-US">Diluted weighted average shares outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xml:lang="en-US">Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect include: Stock options</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="us-gaap_DebtInstrumentMaturityDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentMaturityDate" xlink:to="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xml:lang="en-US">Debt maturity date</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Line of credit facility, maximum borrowing capacity</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.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">Long-term debt</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentPrincipal" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPaymentPrincipal" xlink:to="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl" xml:lang="en-US">Debt instrument, periodic payment, principal</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan" xlink:label="PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan" xlink:to="PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan_lbl" xml:lang="en-US">Number of years used to determine monthly payment on term loan</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:to="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xml:lang="en-US">Debt instrument, basis spread on variable rate</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DebtInstrumentTerminationNotice" xlink:label="PESI_DebtInstrumentTerminationNotice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DebtInstrumentTerminationNotice" xlink:to="PESI_DebtInstrumentTerminationNotice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DebtInstrumentTerminationNotice_lbl" xml:lang="en-US">Debt instrument, termination notice</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations" xlink:label="PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations" xlink:to="PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations_lbl" xml:lang="en-US">Debt instrument percentage of total financing to be paid upon early retirement of debt obligations</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:to="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_lbl" xml:lang="en-US">Line of credit facility, remaining borrowing capacity</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_IndefiniteReductionOfBorrowingAvailability" xlink:label="PESI_IndefiniteReductionOfBorrowingAvailability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IndefiniteReductionOfBorrowingAvailability" xlink:to="PESI_IndefiniteReductionOfBorrowingAvailability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_IndefiniteReductionOfBorrowingAvailability_lbl" xml:lang="en-US">Indefinite reduction of borrowing availability</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="us-gaap_LettersOfCreditOutstandingAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LettersOfCreditOutstandingAmount" xlink:to="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xml:lang="en-US">Letters of credit outstanding, amount</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="us-gaap_LongTermDebtAndCapitalLeaseObligations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:to="us-gaap_LongTermDebtAndCapitalLeaseObligations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtAndCapitalLeaseObligations_lbl" xml:lang="en-US">Total debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtCurrent" xlink:to="us-gaap_LongTermDebtCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LongTermDebtCurrent_2_lbl" xml:lang="en-US">Less current portion of long-term debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtNoncurrent" xlink:to="us-gaap_LongTermDebtNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LongTermDebtNoncurrent_2_lbl" xml:lang="en-US">Long-term debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentMaturityDate" xlink:to="us-gaap_DebtInstrumentMaturityDate_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtInstrumentMaturityDate_2_lbl" xml:lang="en-US">Debt due date</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:to="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xml:lang="en-US">Effective interest rate</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPaymentPrincipal" xlink:to="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_2_lbl" xml:lang="en-US">Principal amount</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="us-gaap_DeferredFinanceCostsNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFinanceCostsNet" xlink:to="us-gaap_DeferredFinanceCostsNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xml:lang="en-US">Debt issuance costs net</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligation" xlink:label="us-gaap_AssetRetirementObligation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetRetirementObligation" xlink:to="us-gaap_AssetRetirementObligation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetRetirementObligation_lbl" xml:lang="en-US">Accrued liabilities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetRetirementObligation" xlink:to="us-gaap_AssetRetirementObligation_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_AssetRetirementObligation_2_lbl" xml:lang="en-US">Balance as of December 31, 2017</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationAccretionExpense" xlink:label="us-gaap_AssetRetirementObligationAccretionExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetRetirementObligationAccretionExpense" xlink:to="us-gaap_AssetRetirementObligationAccretionExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetRetirementObligationAccretionExpense_lbl" xml:lang="en-US">Accretion expense</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationLiabilitiesSettled" xlink:label="us-gaap_AssetRetirementObligationLiabilitiesSettled" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetRetirementObligationLiabilitiesSettled" xlink:to="us-gaap_AssetRetirementObligationLiabilitiesSettled_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetRetirementObligationLiabilitiesSettled_lbl" xml:lang="en-US">Payments</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetRetirementObligation" xlink:to="us-gaap_AssetRetirementObligation_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_AssetRetirementObligation_3_lbl" xml:lang="en-US">Balance as of March 31, 2018</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PeriodOfFiniteRiskInsurancePolicy" xlink:label="PESI_PeriodOfFiniteRiskInsurancePolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PeriodOfFiniteRiskInsurancePolicy" xlink:to="PESI_PeriodOfFiniteRiskInsurancePolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_PeriodOfFiniteRiskInsurancePolicy_lbl" xml:lang="en-US">Period of finite risk insurance policy</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_MaximumAllowableCoverageOfInsurancePolicy" xlink:label="PESI_MaximumAllowableCoverageOfInsurancePolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MaximumAllowableCoverageOfInsurancePolicy" xlink:to="PESI_MaximumAllowableCoverageOfInsurancePolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_MaximumAllowableCoverageOfInsurancePolicy_lbl" xml:lang="en-US">Maximum allowable coverage of insurance policy</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy" xlink:label="PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy" xlink:to="PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy_lbl" xml:lang="en-US">Financial assurance coverage amount under insurance policy</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_SinkingFundRelatedToInsurancePolicy" xlink:label="PESI_SinkingFundRelatedToInsurancePolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SinkingFundRelatedToInsurancePolicy" xlink:to="PESI_SinkingFundRelatedToInsurancePolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_SinkingFundRelatedToInsurancePolicy_lbl" xml:lang="en-US">Sinking fund related to insurance policy</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_InterestEarnedOnSinkingFund" xlink:label="PESI_InterestEarnedOnSinkingFund" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_InterestEarnedOnSinkingFund" xlink:to="PESI_InterestEarnedOnSinkingFund_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_InterestEarnedOnSinkingFund_lbl" xml:lang="en-US">Interest earned on sinking fund</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestIncomeOther" xlink:to="us-gaap_InterestIncomeOther_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InterestIncomeOther_2_lbl" xml:lang="en-US">Interest income, other</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_InsurersObligationToEntityOnTerminationOfContract" xlink:label="PESI_InsurersObligationToEntityOnTerminationOfContract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_InsurersObligationToEntityOnTerminationOfContract" xlink:to="PESI_InsurersObligationToEntityOnTerminationOfContract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_InsurersObligationToEntityOnTerminationOfContract_lbl" xml:lang="en-US">Insurers obligation to entity on termination of contract</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_BondOutstanding" xlink:label="PESI_BondOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BondOutstanding" xlink:to="PESI_BondOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_BondOutstanding_lbl" xml:lang="en-US">Bond outstanding</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_4_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_4_lbl" xml:lang="en-US">Loss from discontinued operations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:to="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_2_lbl" xml:lang="en-US">Tax effect of discontinued operation</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing_lbl" xml:lang="en-US">Disposal group, including discontinued operation, consideration, after closing</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment_lbl" xml:lang="en-US">Disposal group, including discontinued operation, consideration, installment payment</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance_lbl" xml:lang="en-US">Disposal group, including discontinued operation, consideration, remaining balance</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale_lbl" xml:lang="en-US">Other assets</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:label="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:to="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_lbl" xml:lang="en-US">Total current assets</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent_lbl" xml:lang="en-US">Property, plant and equipment, net</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent_2_lbl" xml:lang="en-US">Other assets</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent_lbl" xml:lang="en-US">Total long-term assets</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale_lbl" xml:lang="en-US">Total assets</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale_lbl" xml:lang="en-US">Accounts payable</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities_lbl" xml:lang="en-US">Accrued expenses and other liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities_lbl" xml:lang="en-US">Environmental liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_lbl" xml:lang="en-US">Total current liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale_lbl" xml:lang="en-US">Closure liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities_lbl" xml:lang="en-US">Environmental liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale_lbl" xml:lang="en-US">Total long-term liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale_lbl" xml:lang="en-US">Total liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization_lbl" xml:lang="en-US">Accumulated depreciation</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="us-gaap_NumberOfReportableSegments" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NumberOfReportableSegments" xlink:to="us-gaap_NumberOfReportableSegments_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xml:lang="en-US">Number of reportable segments</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SalesRevenueNet" xlink:to="us-gaap_SalesRevenueNet_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SalesRevenueNet_2_lbl" xml:lang="en-US">Revenue from external customers</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_IntercompanyRevenues" xlink:label="PESI_IntercompanyRevenues" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IntercompanyRevenues" xlink:to="PESI_IntercompanyRevenues_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_IntercompanyRevenues_lbl" xml:lang="en-US">Intercompany revenues</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GrossProfit" xlink:to="us-gaap_GrossProfit_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GrossProfit_2_lbl" xml:lang="en-US">Gross profit</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="us-gaap_DepreciationAndAmortization" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAndAmortization" xlink:to="us-gaap_DepreciationAndAmortization_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xml:lang="en-US">Depreciation and amortization</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_2_lbl" xml:lang="en-US">Segment income (loss) before income taxes</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_3_lbl" xml:lang="en-US">Segment income (loss)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_2_lbl" xml:lang="en-US">Expenditures for segment assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="us-gaap_IncomeTaxExpenseBenefit_2_lbl" xml:lang="en-US">Income tax (benefit) expense</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:to="us-gaap_EffectiveIncomeTaxRateContinuingOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations_lbl" xml:lang="en-US">Effective income tax rate reconciliation, percent</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage" xlink:to="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage_lbl" xml:lang="en-US">Deferred compensation arrangement with individual, cash awards granted, minimum, percentage</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage" xlink:to="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage_lbl" xml:lang="en-US">Deferred compensation arrangement with individual, cash awards granted, maximum, percentage</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount" xlink:to="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount_lbl" xml:lang="en-US">Deferred compensation arrangement with individual, cash awards granted, minimum, amount</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount" xlink:to="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount_lbl" xml:lang="en-US">Deferred compensation arrangement with individual, cash awards granted, maximum, amount</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockLiquidationPreference" xlink:label="us-gaap_PreferredStockLiquidationPreference" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockLiquidationPreference" xlink:to="us-gaap_PreferredStockLiquidationPreference_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockLiquidationPreference_lbl" xml:lang="en-US">Liquidation preference per share</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockRedemptionPricePerShare" xlink:label="us-gaap_PreferredStockRedemptionPricePerShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockRedemptionPricePerShare" xlink:to="us-gaap_PreferredStockRedemptionPricePerShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockRedemptionPricePerShare_lbl" xml:lang="en-US">Purchase price of preferred stock</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockDividendRatePercentage" xlink:label="us-gaap_PreferredStockDividendRatePercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockDividendRatePercentage" xlink:to="us-gaap_PreferredStockDividendRatePercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockDividendRatePercentage_lbl" xml:lang="en-US">Cumulative dividends rate</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConversionOfStockDescription" xlink:label="us-gaap_ConversionOfStockDescription" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConversionOfStockDescription" xlink:to="us-gaap_ConversionOfStockDescription_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConversionOfStockDescription_lbl" xml:lang="en-US">Conversion of stock, description</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:to="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xml:lang="en-US">Number of common shares issued</link:label>
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockVotingRights" xlink:label="us-gaap_CommonStockVotingRights" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockVotingRights" xlink:to="us-gaap_CommonStockVotingRights_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockVotingRights_lbl" xml:lang="en-US">Voting capital stock</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends" xlink:label="PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends" xlink:to="PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends_lbl" xml:lang="en-US">Quarterly cash dividends and cumulative accrued and unpaid dividends</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AfterMarch232017ButPriorToOrOnMarch232018Member" xlink:to="PESI_AfterMarch232017ButPriorToOrOnMarch232018Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AfterMarch232017ButPriorToOrOnMarch232018Member_doc" xml:lang="en-US">Represents the period of time after March 23, 2017 and prior to or on March 23, 2018.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AfterMarch232018ButPriorToOrOnMarch232019Member" xlink:to="PESI_AfterMarch232018ButPriorToOrOnMarch232019Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AfterMarch232018ButPriorToOrOnMarch232019Member_doc" xml:lang="en-US">Represents the period after March 23, 2018 and prior to or on March 23, 2019.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AfterMarch232019Member" xlink:to="PESI_AfterMarch232019Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AfterMarch232019Member_doc" xml:lang="en-US">Represents the period of time after March 23, 2019.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AmendedLoanAgreementMember" xlink:label="PESI_AmendedLoanAgreementMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AmendedLoanAgreementMember" xlink:to="PESI_AmendedLoanAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AmendedLoanAgreementMember_doc" xml:lang="en-US">Represents the Amended Loan Agreement.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AmendmentToTheRevisedLoanAgreementMember" xlink:to="PESI_AmendmentToTheRevisedLoanAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AmendmentToTheRevisedLoanAgreementMember_doc" xml:lang="en-US">Represents information pertaining to an amendment to the Revised Loan Agreement.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AmericanInternationalGroupIncMember" xlink:to="PESI_AmericanInternationalGroupIncMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AmericanInternationalGroupIncMember_doc" xml:lang="en-US">Represents information pertaining to American International Group, Inc.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" xlink:to="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_doc" xml:lang="en-US">Amount classified as assets attributed to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer, or assets retained by the Company upon divestiture of facility.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_BenNaccaratoMember" xlink:label="PESI_BenNaccaratoMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BenNaccaratoMember" xlink:to="PESI_BenNaccaratoMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_BenNaccaratoMember_doc" xml:lang="en-US">Ben Naccarato [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BuildingsAndLand" xlink:to="PESI_BuildingsAndLand_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_BuildingsAndLand_doc" xml:lang="en-US">Carrying amount as of the balance sheet date of long-lived, depreciable assets that include building structures held for productive use including any addition, improvement, or renovation to the structure, such as interior masonry, interior flooring, electrical, and plumbing. And the carrying amount as of the balance sheet date of real estate held for productive use. This excludes land held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CommonStockHeldInTreasuryMember" xlink:to="PESI_CommonStockHeldInTreasuryMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CommonStockHeldInTreasuryMember_doc" xml:lang="en-US">Common Stock Held In Treasury [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_CreditFacilitySecuredByABondMember" xlink:label="PESI_CreditFacilitySecuredByABondMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CreditFacilitySecuredByABondMember" xlink:to="PESI_CreditFacilitySecuredByABondMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CreditFacilitySecuredByABondMember_doc" xml:lang="en-US">Refers to the information regarding the credit facility secured by a bond.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_CurrentAssetsRelatedToDiscontinuedOperationsMember" xlink:label="PESI_CurrentAssetsRelatedToDiscontinuedOperationsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CurrentAssetsRelatedToDiscontinuedOperationsMember" xlink:to="PESI_CurrentAssetsRelatedToDiscontinuedOperationsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CurrentAssetsRelatedToDiscontinuedOperationsMember_doc" xml:lang="en-US">Assets considered to be a part of the disposal group that are classified as Current Assets related to Discontinued Operations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DirectorStockOptionsMember" xlink:to="PESI_DirectorStockOptionsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DirectorStockOptionsMember_doc" xml:lang="en-US">Information pertaining to director stock options.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale_doc" xml:lang="en-US">Amount Classified as assets attributed to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer, or assets retained by the Company upon divestiture of facility.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalTransportationAccrual" xlink:to="PESI_DisposalTransportationAccrual_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalTransportationAccrual_doc" xml:lang="en-US">Carrying value of the obligation (known or estimated) arising from requirements to perform disposal/transportation activities, payable in twelve months or in the next operating cycle if longer.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DrLouisCentofantiMember" xlink:label="PESI_DrLouisCentofantiMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DrLouisCentofantiMember" xlink:to="PESI_DrLouisCentofantiMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DrLouisCentofantiMember_doc" xml:lang="en-US">Dr. Louis Centofanti [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_EmployeeStockOptionGrantedMember" xlink:label="PESI_EmployeeStockOptionGrantedMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeStockOptionGrantedMember" xlink:to="PESI_EmployeeStockOptionGrantedMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EmployeeStockOptionGrantedMember_doc" xml:lang="en-US">Employee Stock Option Granted [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ExecutiveVicePresidentOfPfMedicalMember" xlink:label="PESI_ExecutiveVicePresidentOfPfMedicalMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ExecutiveVicePresidentOfPfMedicalMember" xlink:to="PESI_ExecutiveVicePresidentOfPfMedicalMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ExecutiveVicePresidentOfPfMedicalMember_doc" xml:lang="en-US">Represents the Executive Vice President of PF Medical.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_IncentiveStockOptionsMember" xlink:label="PESI_IncentiveStockOptionsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IncentiveStockOptionsMember" xlink:to="PESI_IncentiveStockOptionsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_IncentiveStockOptionsMember_doc" xml:lang="en-US">The incentive stock options from the Company's stock option plans.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" xlink:to="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_doc" xml:lang="en-US">The increase (decrease) during the reporting period in the amount payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid and changes in unearned revenue.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_JanuaryTwentySevenTwoThousandEighteenMember" xlink:label="PESI_JanuaryTwentySevenTwoThousandEighteenMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_JanuaryTwentySevenTwoThousandEighteenMember" xlink:to="PESI_JanuaryTwentySevenTwoThousandEighteenMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_JanuaryTwentySevenTwoThousandEighteenMember_doc" xml:lang="en-US">January 27, 2018 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_JanuaryTwentySevenTwoThousandNineteenMember" xlink:label="PESI_JanuaryTwentySevenTwoThousandNineteenMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_JanuaryTwentySevenTwoThousandNineteenMember" xlink:to="PESI_JanuaryTwentySevenTwoThousandNineteenMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_JanuaryTwentySevenTwoThousandNineteenMember_doc" xml:lang="en-US">January 27, 2019 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_JanuaryTwentySevenTwoThousandTwentyOneMember" xlink:label="PESI_JanuaryTwentySevenTwoThousandTwentyOneMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_JanuaryTwentySevenTwoThousandTwentyOneMember" xlink:to="PESI_JanuaryTwentySevenTwoThousandTwentyOneMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_JanuaryTwentySevenTwoThousandTwentyOneMember_doc" xml:lang="en-US">January 27, 2021 [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_doc" xml:lang="en-US">Amount classified as liabilities attributed to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer, or liabilities retained by the Company upon divestiture of facility.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent_doc" xml:lang="en-US">Amount classified as liabilities attributable to disposal group held for sale or disposed of, including liabilities not held for sale, expected to be disposed of after one year or the normal operating cycle, if longer, or liabilities retained by the Company upon divestiture of facility.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_LouisFCentofantiMember" xlink:label="PESI_LouisFCentofantiMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LouisFCentofantiMember" xlink:to="PESI_LouisFCentofantiMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LouisFCentofantiMember_doc" xml:lang="en-US">Louis F. Centofanti [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_MANDECMember" xlink:label="PESI_MANDECMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MANDECMember" xlink:to="PESI_MANDECMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MANDECMember_doc" xml:lang="en-US">East Tennessee Materials and Energy Corporation (&amp;amp;#8220;M&amp;amp;amp;EC&amp;amp;#8221;) Facility.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MedicalMember" xlink:to="PESI_MedicalMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MedicalMember_doc" xml:lang="en-US">Information pertaining to the medical segment.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_MrBenNaccaratoMember" xlink:label="PESI_MrBenNaccaratoMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MrBenNaccaratoMember" xlink:to="PESI_MrBenNaccaratoMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MrBenNaccaratoMember_doc" xml:lang="en-US">Mr. Ben Naccarato [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_MrClimacoMember" xlink:label="PESI_MrClimacoMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MrClimacoMember" xlink:to="PESI_MrClimacoMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MrClimacoMember_doc" xml:lang="en-US">Information pertaining to Mr. Climaco.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_MrMarkDuffMember" xlink:label="PESI_MrMarkDuffMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MrMarkDuffMember" xlink:to="PESI_MrMarkDuffMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MrMarkDuffMember_doc" xml:lang="en-US">Mr. Mark Duff [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_MrRobertFergusonMember" xlink:label="PESI_MrRobertFergusonMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MrRobertFergusonMember" xlink:to="PESI_MrRobertFergusonMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MrRobertFergusonMember_doc" xml:lang="en-US">Mr. Robert Ferguson [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" xlink:to="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_doc" xml:lang="en-US">Disclosure of accounting policy for new accounting pronouncements that has been issued, but not yet adopted [Policy Text Block].</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_NonQualifiedStockOptionsAndIncentiveStockOptionsMember" xlink:label="PESI_NonQualifiedStockOptionsAndIncentiveStockOptionsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NonQualifiedStockOptionsAndIncentiveStockOptionsMember" xlink:to="PESI_NonQualifiedStockOptionsAndIncentiveStockOptionsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NonQualifiedStockOptionsAndIncentiveStockOptionsMember_doc" xml:lang="en-US">Non-qualified Stock Options and Incentive Stock Options [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_NonQualifiedStockOptionsMember" xlink:label="PESI_NonQualifiedStockOptionsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NonQualifiedStockOptionsMember" xlink:to="PESI_NonQualifiedStockOptionsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NonQualifiedStockOptionsMember_doc" xml:lang="en-US">Non-qualified Stock Options [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NoncontrollingInterestSubsidiaryMember" xlink:to="PESI_NoncontrollingInterestSubsidiaryMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NoncontrollingInterestSubsidiaryMember_doc" xml:lang="en-US">Noncontrolling Interest Subsidiary [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_NotHeldForSaleMember" xlink:label="PESI_NotHeldForSaleMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NotHeldForSaleMember" xlink:to="PESI_NotHeldForSaleMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NotHeldForSaleMember_doc" xml:lang="en-US">Represents not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OnOrBeforeMarch232017Member" xlink:to="PESI_OnOrBeforeMarch232017Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_OnOrBeforeMarch232017Member_doc" xml:lang="en-US">Represents the period of on or before March 23, 2017.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_OtherAssetsRelatedToDiscontinuedOperationsMember" xlink:label="PESI_OtherAssetsRelatedToDiscontinuedOperationsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OtherAssetsRelatedToDiscontinuedOperationsMember" xlink:to="PESI_OtherAssetsRelatedToDiscontinuedOperationsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_OtherAssetsRelatedToDiscontinuedOperationsMember_doc" xml:lang="en-US">Assets considered to be a part of the disposal group that are classified as Other Assets Related to Discontinued Operations.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OutsideDirectorStockOptionsGrantedMember" xlink:to="PESI_OutsideDirectorStockOptionsGrantedMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_OutsideDirectorStockOptionsGrantedMember_doc" xml:lang="en-US">Outside Director Stock Options Granted [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PFMIMember" xlink:label="PESI_PFMIMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PFMIMember" xlink:to="PESI_PFMIMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PFMIMember_doc" xml:lang="en-US">Represents the Perma-Fix of Michigan Inc.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PNCBankMember" xlink:to="PESI_PNCBankMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PNCBankMember_doc" xml:lang="en-US">The agent and lender known as PNC National Association ("PNC").</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PermaFixNorthwestRichlandIncMember" xlink:label="PESI_PermaFixNorthwestRichlandIncMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermaFixNorthwestRichlandIncMember" xlink:to="PESI_PermaFixNorthwestRichlandIncMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PermaFixNorthwestRichlandIncMember_doc" xml:lang="en-US">Represents the company's facility, Perma-Fix Northwest Richland Inc.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermaFixOfMichiganIncMember" xlink:to="PESI_PermaFixOfMichiganIncMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PermaFixOfMichiganIncMember_doc" xml:lang="en-US">Perma-Fix of Michigan, Inc. [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PermitMember" xlink:label="PESI_PermitMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermitMember" xlink:to="PESI_PermitMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PermitMember_doc" xml:lang="en-US">Permit [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_Permits" xlink:to="PESI_Permits_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_Permits_doc" xml:lang="en-US">Carrying amount (net of any accumulated depreciation) as of the balance sheet date of operating permits having definite or indefinite lives.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund" xlink:to="PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund_doc" xml:lang="en-US">The net cash inflow or outflow to the finite risk sinking fund for the Company's closure policy.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves" xlink:to="PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves_doc" xml:lang="en-US">Amount of the current period expense charged (recovery) against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected) and miscellaneous other reserves.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RevisedLoanAgreementMember" xlink:to="PESI_RevisedLoanAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RevisedLoanAgreementMember_doc" xml:lang="en-US">The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RevolvingCreditMember" xlink:to="PESI_RevolvingCreditMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RevolvingCreditMember_doc" xml:lang="en-US">Represents the revolving credit.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_RobertLFergusonMember" xlink:label="PESI_RobertLFergusonMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RobertLFergusonMember" xlink:to="PESI_RobertLFergusonMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RobertLFergusonMember_doc" xml:lang="en-US">Robert L. Ferguson [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SegmentsTotalMember" xlink:to="PESI_SegmentsTotalMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SegmentsTotalMember_doc" xml:lang="en-US">Information pertaining to total segments.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ServicesMember" xlink:to="PESI_ServicesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ServicesMember_doc" xml:lang="en-US">Information pertaining to the services segment.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ShareBasedCompensationEmployeeAndDirector" xlink:to="PESI_ShareBasedCompensationEmployeeAndDirector_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ShareBasedCompensationEmployeeAndDirector_doc" xml:lang="en-US">The aggregate amount of noncash, equity-based employee and outside director remuneration. This may include the value of stock options, amortization of restricted stock, and adjustment for officers compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SoftwareMember" xlink:to="PESI_SoftwareMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SoftwareMember_doc" xml:lang="en-US">Software [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_StandbyLetterOfCreditForNewBondingMechanismMember" xlink:label="PESI_StandbyLetterOfCreditForNewBondingMechanismMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_StandbyLetterOfCreditForNewBondingMechanismMember" xlink:to="PESI_StandbyLetterOfCreditForNewBondingMechanismMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_StandbyLetterOfCreditForNewBondingMechanismMember_doc" xml:lang="en-US">Represents the standby letter of credit for the new bonding mechanism.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TemporaryEquityAccruedAndUnpaidDividends" xlink:to="PESI_TemporaryEquityAccruedAndUnpaidDividends_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TemporaryEquityAccruedAndUnpaidDividends_doc" xml:lang="en-US">Carrying value as of the balance sheet date of dividends accrued and unpaid on an entity's issued and outstanding stock which is not included within permanent equity.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TenPercentOfStockholderMember" xlink:label="PESI_TenPercentOfStockholderMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TenPercentOfStockholderMember" xlink:to="PESI_TenPercentOfStockholderMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TenPercentOfStockholderMember_doc" xml:lang="en-US">Ten Percent of Stockholder [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TermLoanMember" xlink:to="PESI_TermLoanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TermLoanMember_doc" xml:lang="en-US">Represents the term loan.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_The2003OutsideDirectorsStockPlanMember" xlink:label="PESI_The2003OutsideDirectorsStockPlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_The2003OutsideDirectorsStockPlanMember" xlink:to="PESI_The2003OutsideDirectorsStockPlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_The2003OutsideDirectorsStockPlanMember_doc" xml:lang="en-US">Represents the 2003 Outside Directors Stock Plan.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_The2010StockOptionPlanMember" xlink:label="PESI_The2010StockOptionPlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_The2010StockOptionPlanMember" xlink:to="PESI_The2010StockOptionPlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_The2010StockOptionPlanMember_doc" xml:lang="en-US">Represents the 2010 Stock Option Plan.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TreatmentMember" xlink:to="PESI_TreatmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TreatmentMember_doc" xml:lang="en-US">Information pertaining to the treatment segment.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TwoThousandSeventeenStockOptionPlanMember" xlink:label="PESI_TwoThousandSeventeenStockOptionPlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandSeventeenStockOptionPlanMember" xlink:to="PESI_TwoThousandSeventeenStockOptionPlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TwoThousandSeventeenStockOptionPlanMember_doc" xml:lang="en-US">2017 Stock Option Plan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TwoThousandTenStockOptionPlanMember" xlink:label="PESI_TwoThousandTenStockOptionPlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandTenStockOptionPlanMember" xlink:to="PESI_TwoThousandTenStockOptionPlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TwoThousandTenStockOptionPlanMember_doc" xml:lang="en-US">2010 Stock Option Plan [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandThreeOutsideDirectorsStockPlanMember" xlink:to="PESI_TwoThousandThreeOutsideDirectorsStockPlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TwoThousandThreeOutsideDirectorsStockPlanMember_doc" xml:lang="en-US">2003 Outside Directors Stock Plan [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_UnbilledContractsReceivableCurrent" xlink:to="PESI_UnbilledContractsReceivableCurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_UnbilledContractsReceivableCurrent_doc" xml:lang="en-US">The current portion of unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance there under exceeds the amounts billed under the terms thereof as of the date of the balance sheet.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_UnbilledContractsReceivableNoncurrent" xlink:to="PESI_UnbilledContractsReceivableNoncurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_UnbilledContractsReceivableNoncurrent_doc" xml:lang="en-US">The non-current portion of unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_Vehicles" xlink:to="PESI_Vehicles_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_Vehicles_doc" xml:lang="en-US">Carrying amount as of the balance sheet date of long-lived depreciable asset used in transporting goods or used for performing services. Examples includes cars, trucks, and forklifts.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DefiniteLivedIntangibleAssetsMember" xlink:label="PESI_DefiniteLivedIntangibleAssetsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DefiniteLivedIntangibleAssetsMember" xlink:to="PESI_DefiniteLivedIntangibleAssetsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DefiniteLivedIntangibleAssetsMember_doc" xml:lang="en-US">Definite-Lived Intangible Assets [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" xlink:to="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock_doc" xml:lang="en-US">Tabular disclosure of information related to a disposal group for the balance sheet. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent_doc" xml:lang="en-US">Amount classified as other assets attributable to discontinued operations not held for sale,</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FiniteRiskSinkingFund" xlink:to="PESI_FiniteRiskSinkingFund_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_FiniteRiskSinkingFund_doc" xml:lang="en-US">As of the balance sheet date, the total amount into the sinking fund, along with interest income earned, in connection for the company's closure policies.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ForeignSubsidiariesMember" xlink:label="PESI_ForeignSubsidiariesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ForeignSubsidiariesMember" xlink:to="PESI_ForeignSubsidiariesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ForeignSubsidiariesMember_doc" xml:lang="en-US">Foreign Subsidiaries [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_OfficeFurnitureAndEquipmentMember" xlink:label="PESI_OfficeFurnitureAndEquipmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OfficeFurnitureAndEquipmentMember" xlink:to="PESI_OfficeFurnitureAndEquipmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_OfficeFurnitureAndEquipmentMember_doc" xml:lang="en-US">Office Furniture And Equipment [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_FederalGovernmentMember" xlink:label="PESI_FederalGovernmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FederalGovernmentMember" xlink:to="PESI_FederalGovernmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_FederalGovernmentMember_doc" xml:lang="en-US">Federal Government [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PSCMetalIncMember" xlink:label="PESI_PSCMetalIncMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PSCMetalIncMember" xlink:to="PESI_PSCMetalIncMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PSCMetalIncMember_doc" xml:lang="en-US">PSC Metal, Inc [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_CustomerOneMember" xlink:label="PESI_CustomerOneMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CustomerOneMember" xlink:to="PESI_CustomerOneMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CustomerOneMember_doc" xml:lang="en-US">Customer One [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_CustomerTwoMember" xlink:label="PESI_CustomerTwoMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CustomerTwoMember" xlink:to="PESI_CustomerTwoMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CustomerTwoMember_doc" xml:lang="en-US">Customer Two [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_MECMember" xlink:label="PESI_MECMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MECMember" xlink:to="PESI_MECMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MECMember_doc" xml:lang="en-US">M&amp;EC [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DSSIMember" xlink:label="PESI_DSSIMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DSSIMember" xlink:to="PESI_DSSIMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DSSIMember_doc" xml:lang="en-US">DSSI [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PFMedicalMember" xlink:label="PESI_PFMedicalMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PFMedicalMember" xlink:to="PESI_PFMedicalMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PFMedicalMember_doc" xml:lang="en-US">PF Medical [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PeriodOfFiniteRiskInsurancePolicy" xlink:to="PESI_PeriodOfFiniteRiskInsurancePolicy_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PeriodOfFiniteRiskInsurancePolicy_doc" xml:lang="en-US">Represents the period of finite risk insurance policy.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MaximumAllowableCoverageOfInsurancePolicy" xlink:to="PESI_MaximumAllowableCoverageOfInsurancePolicy_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MaximumAllowableCoverageOfInsurancePolicy_doc" xml:lang="en-US">Maximum allowable coverage of insurance policy against annual inflation and other performance and surety bond requirements.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy" xlink:to="PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy_doc" xml:lang="en-US">Represents the financial assurance coverage amount under insurance policy.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SinkingFundRelatedToInsurancePolicy" xlink:to="PESI_SinkingFundRelatedToInsurancePolicy_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SinkingFundRelatedToInsurancePolicy_doc" xml:lang="en-US">Represents the sinking fund related to the insurance policy.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_InterestEarnedOnSinkingFund" xlink:to="PESI_InterestEarnedOnSinkingFund_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_InterestEarnedOnSinkingFund_doc" xml:lang="en-US">Represents the interest earned on sinking fund.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_InsurersObligationToEntityOnTerminationOfContract" xlink:to="PESI_InsurersObligationToEntityOnTerminationOfContract_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_InsurersObligationToEntityOnTerminationOfContract_doc" xml:lang="en-US">Insurer's obligation to entity on termination of contract in terms of percentage of sinking fund.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BondOutstanding" xlink:to="PESI_BondOutstanding_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_BondOutstanding_doc" xml:lang="en-US">The total amount of the bonds outstanding as of the reporting date.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_VicePresidentOfInformationSystemsMember" xlink:label="PESI_VicePresidentOfInformationSystemsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_VicePresidentOfInformationSystemsMember" xlink:to="PESI_VicePresidentOfInformationSystemsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_VicePresidentOfInformationSystemsMember_doc" xml:lang="en-US">Robert Freguson and William Lampson Lenders [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_DrDavidCentofantiMember" xlink:label="PESI_DrDavidCentofantiMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DrDavidCentofantiMember" xlink:to="PESI_DrDavidCentofantiMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DrDavidCentofantiMember_doc" xml:lang="en-US">Dr. David Centofanti [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_RobertFregusonAndWilliamLampsonLendersMember" xlink:label="PESI_RobertFregusonAndWilliamLampsonLendersMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RobertFregusonAndWilliamLampsonLendersMember" xlink:to="PESI_RobertFregusonAndWilliamLampsonLendersMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RobertFregusonAndWilliamLampsonLendersMember_doc" xml:lang="en-US">Robert Freguson and William Lampson Lenders [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_AdvisoryServicesMember" xlink:label="PESI_AdvisoryServicesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AdvisoryServicesMember" xlink:to="PESI_AdvisoryServicesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AdvisoryServicesMember_doc" xml:lang="en-US">Advisory Services [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermitsMember" xlink:to="PESI_PermitsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PermitsMember_doc" xml:lang="en-US">Represents finite-lived permits.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TwoThousandThreeOutsiadeDirectorsStockOptionPlanMember" xlink:label="PESI_TwoThousandThreeOutsiadeDirectorsStockOptionPlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandThreeOutsiadeDirectorsStockOptionPlanMember" xlink:to="PESI_TwoThousandThreeOutsiadeDirectorsStockOptionPlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TwoThousandThreeOutsiadeDirectorsStockOptionPlanMember_doc" xml:lang="en-US">2003 Outside Directors Stock Option Plan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ElectionMember" xlink:label="PESI_ElectionMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ElectionMember" xlink:to="PESI_ElectionMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ElectionMember_doc" xml:lang="en-US">Election [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_ReelectionMember" xlink:label="PESI_ReelectionMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ReelectionMember" xlink:to="PESI_ReelectionMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ReelectionMember_doc" xml:lang="en-US">Re-election [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_OfficersAndEmployeesMember" xlink:label="PESI_OfficersAndEmployeesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OfficersAndEmployeesMember" xlink:to="PESI_OfficersAndEmployeesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_OfficersAndEmployeesMember_doc" xml:lang="en-US">Officers and Employees [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_EmployeesMember" xlink:label="PESI_EmployeesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeesMember" xlink:to="PESI_EmployeesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EmployeesMember_doc" xml:lang="en-US">Employees [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PortionOfDirectorFeeEarnedInCommonStockMember" xlink:label="PESI_PortionOfDirectorFeeEarnedInCommonStockMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PortionOfDirectorFeeEarnedInCommonStockMember" xlink:to="PESI_PortionOfDirectorFeeEarnedInCommonStockMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PortionOfDirectorFeeEarnedInCommonStockMember_doc" xml:lang="en-US">Portion of Director Fee Earned in Common Stock [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_RightPlaNMember" xlink:label="PESI_RightPlaNMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RightPlaNMember" xlink:to="PESI_RightPlaNMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RightPlaNMember_doc" xml:lang="en-US">Right Plan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TwoLendersMember" xlink:label="PESI_TwoLendersMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoLendersMember" xlink:to="PESI_TwoLendersMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TwoLendersMember_doc" xml:lang="en-US">Two Lenders [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PermaFixOfDaytonIncPermaFixOfMichiganInMember" xlink:label="PESI_PermaFixOfDaytonIncPermaFixOfMichiganInMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermaFixOfDaytonIncPermaFixOfMichiganInMember" xlink:to="PESI_PermaFixOfDaytonIncPermaFixOfMichiganInMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PermaFixOfDaytonIncPermaFixOfMichiganInMember_doc" xml:lang="en-US">Perma-Fix of Dayton, Inc Perma-Fix of Michigan, Inc. [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan" xlink:to="PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan_doc" xml:lang="en-US">Number of years used to determine monthly payment on term loan.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DebtInstrumentTerminationNotice" xlink:to="PESI_DebtInstrumentTerminationNotice_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DebtInstrumentTerminationNotice_doc" xml:lang="en-US">Number of days' prior written notice upon payment in full of outstanding obligations to terminate agreement.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations" xlink:to="PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations_doc" xml:lang="en-US">Upon early retirement of debt obligations, the percentage of total financing to be paid as a fee.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PFDMember" xlink:label="PESI_PFDMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PFDMember" xlink:to="PESI_PFDMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PFDMember_doc" xml:lang="en-US">PFD [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PFMMember" xlink:label="PESI_PFMMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PFMMember" xlink:to="PESI_PFMMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PFMMember_doc" xml:lang="en-US">PFM [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PFSGMember" xlink:label="PESI_PFSGMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PFSGMember" xlink:to="PESI_PFSGMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PFSGMember_doc" xml:lang="en-US">PFSG [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_RevolvingCreditandTermLoanAgreementMember" xlink:label="PESI_RevolvingCreditandTermLoanAgreementMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RevolvingCreditandTermLoanAgreementMember" xlink:to="PESI_RevolvingCreditandTermLoanAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RevolvingCreditandTermLoanAgreementMember_doc" xml:lang="en-US">Revolving Credit and Term Loan Agreement [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_LenderMember" xlink:label="PESI_LenderMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LenderMember" xlink:to="PESI_LenderMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LenderMember_doc" xml:lang="en-US">Lender [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IndefiniteReductionOfBorrowingAvailability" xlink:to="PESI_IndefiniteReductionOfBorrowingAvailability_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_IndefiniteReductionOfBorrowingAvailability_doc" xml:lang="en-US">Indefinite reduction of borrowing availability.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PromissoryNoteMember" xlink:label="PESI_PromissoryNoteMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PromissoryNoteMember" xlink:to="PESI_PromissoryNoteMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PromissoryNoteMember_doc" xml:lang="en-US">Promissory Note [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_RobertFergusonandWilliamLampsonMember" xlink:label="PESI_RobertFergusonandWilliamLampsonMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RobertFergusonandWilliamLampsonMember" xlink:to="PESI_RobertFergusonandWilliamLampsonMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RobertFergusonandWilliamLampsonMember_doc" xml:lang="en-US">Robert Ferguson and William Lampson [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TwoThousandThreeOutsiadeDirectorsStockPlanMember" xlink:label="PESI_TwoThousandThreeOutsiadeDirectorsStockPlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandThreeOutsiadeDirectorsStockPlanMember" xlink:to="PESI_TwoThousandThreeOutsiadeDirectorsStockPlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TwoThousandThreeOutsiadeDirectorsStockPlanMember_doc" xml:lang="en-US">2003 Outside Directors Stock Plan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_CommonStockOneMember" xlink:label="PESI_CommonStockOneMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CommonStockOneMember" xlink:to="PESI_CommonStockOneMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CommonStockOneMember_doc" xml:lang="en-US">Common Stock One [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_NewDirectorMember" xlink:label="PESI_NewDirectorMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NewDirectorMember" xlink:to="PESI_NewDirectorMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NewDirectorMember_doc" xml:lang="en-US">New Director [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_SixReelectedDirectorsMember" xlink:label="PESI_SixReelectedDirectorsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SixReelectedDirectorsMember" xlink:to="PESI_SixReelectedDirectorsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SixReelectedDirectorsMember_doc" xml:lang="en-US">Six Re-elected Directors [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_SevenReElectedDirectorsMember" xlink:label="PESI_SevenReElectedDirectorsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SevenReElectedDirectorsMember" xlink:to="PESI_SevenReElectedDirectorsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SevenReElectedDirectorsMember_doc" xml:lang="en-US">Seven Re-Elected Directors [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PermaFixOfDaytonIncMember" xlink:label="PESI_PermaFixOfDaytonIncMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermaFixOfDaytonIncMember" xlink:to="PESI_PermaFixOfDaytonIncMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PermaFixOfDaytonIncMember_doc" xml:lang="en-US">Perma-Fix of Dayton, Inc [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_PFSGandPFDMember" xlink:label="PESI_PFSGandPFDMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PFSGandPFDMember" xlink:to="PESI_PFSGandPFDMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PFSGandPFDMember_doc" xml:lang="en-US">PFSG and PFD [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_MedicalSegmentMember" xlink:label="PESI_MedicalSegmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MedicalSegmentMember" xlink:to="PESI_MedicalSegmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MedicalSegmentMember_doc" xml:lang="en-US">Medical Segment [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo_doc" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year two.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree_doc" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year three.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour_doc" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year four.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_TaxCutsAndJobsActsMember" xlink:label="PESI_TaxCutsAndJobsActsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TaxCutsAndJobsActsMember" xlink:to="PESI_TaxCutsAndJobsActsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TaxCutsAndJobsActsMember_doc" xml:lang="en-US">Tax Cuts and Jobs Acts [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20180331.xsd#PESI_RobertFergusonMember" xlink:label="PESI_RobertFergusonMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RobertFergusonMember" xlink:to="PESI_RobertFergusonMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RobertFergusonMember_doc" xml:lang="en-US">Robert Ferguson [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AdoptionOfAccountingStandardsUpdates" xlink:to="PESI_AdoptionOfAccountingStandardsUpdates_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AdoptionOfAccountingStandardsUpdates_doc" xml:lang="en-US">Adoption of accounting standards updates.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember" xlink:to="PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember_doc" xml:lang="en-US">Balances Before Adoption of Topic 606 [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DomesticGovernmentMember" xlink:to="PESI_DomesticGovernmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DomesticGovernmentMember_doc" xml:lang="en-US">Domestic Government [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DomesticCommercialMember" xlink:to="PESI_DomesticCommercialMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DomesticCommercialMember_doc" xml:lang="en-US">Domestic Commercial [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ForeignGovernmentMember" xlink:to="PESI_ForeignGovernmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ForeignGovernmentMember_doc" xml:lang="en-US">Foreign Government [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ForeignCommercialMember" xlink:to="PESI_ForeignCommercialMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ForeignCommercialMember_doc" xml:lang="en-US">Foreign Commercial [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FixedPriceMember" xlink:to="PESI_FixedPriceMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_FixedPriceMember_doc" xml:lang="en-US">Fixed Price [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CostReimbursementMember" xlink:to="PESI_CostReimbursementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CostReimbursementMember_doc" xml:lang="en-US">Cost Reimbursement [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TimeandMaterialsMember" xlink:to="PESI_TimeandMaterialsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TimeandMaterialsMember_doc" xml:lang="en-US">Time and Materials [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear_doc" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, remainder of fiscal year.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive" xlink:to="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive_doc" xml:lang="en-US">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year five.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EastTennesseeMaterialsAndEnergyCorporationMember" xlink:to="PESI_EastTennesseeMaterialsAndEnergyCorporationMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EastTennesseeMaterialsAndEnergyCorporationMember_doc" xml:lang="en-US">East Tennessee Materials and Energy Corporation [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_UnbilledReceivablesNonCurrent" xlink:to="PESI_UnbilledReceivablesNonCurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_UnbilledReceivablesNonCurrent_doc" xml:lang="en-US">Unbilled receivables - non-current.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_JanuaryOneTwoThousandEighteenMember" xlink:to="PESI_JanuaryOneTwoThousandEighteenMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_JanuaryOneTwoThousandEighteenMember_doc" xml:lang="en-US">January 1, 2018 [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_YearToDateChangesMember" xlink:to="PESI_YearToDateChangesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_YearToDateChangesMember_doc" xml:lang="en-US">Year-to-date Change [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangesInAccountReceivablesNetOfAllowancePercentage" xlink:to="PESI_ChangesInAccountReceivablesNetOfAllowancePercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ChangesInAccountReceivablesNetOfAllowancePercentage_doc" xml:lang="en-US">Percentage of change in account receivables, net of allowance.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangeInUnbilledReceivablesCurrentPercentage" xlink:to="PESI_ChangeInUnbilledReceivablesCurrentPercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ChangeInUnbilledReceivablesCurrentPercentage_doc" xml:lang="en-US">Percentage of change in unbilled receivables - current percentage.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangesInDeferredRevenuePercentage" xlink:to="PESI_ChangesInDeferredRevenuePercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ChangesInDeferredRevenuePercentage_doc" xml:lang="en-US">Percentage of change in deferred revenue.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangesInUnbilledReceivablesNoncurrentPercentage" xlink:to="PESI_ChangesInUnbilledReceivablesNoncurrentPercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ChangesInUnbilledReceivablesNoncurrentPercentage_doc" xml:lang="en-US">Percentage of change in unbilled receivables - non-current.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing_doc" xml:lang="en-US">Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation, after closing.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment_doc" xml:lang="en-US">Amount of installment payment will received or receivable for the disposal of assets and liabilities, including discontinued operation.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance_doc" xml:lang="en-US">The amount of consideration receivable for the disposal of assets and liabilities, including discontinued operation, that remains as of a specific date.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as other assets attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:to="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as current assets attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent_doc" xml:lang="en-US">Amount classified as property, plant and equipment attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent_doc" xml:lang="en-US">Amount classified as assets attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale_doc" xml:lang="en-US">Amount classified as current and noncurrent assets attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as accounts payable attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities_doc" xml:lang="en-US">Amount classified as accounts payable and accrued liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities_doc" xml:lang="en-US">Amount classified as environmental liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale_doc" xml:lang="en-US">Represents closure liabilities of discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities_doc" xml:lang="en-US">Amount classified as environmental liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale_doc" xml:lang="en-US">Amount classified as liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage" xlink:to="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage_doc" xml:lang="en-US">Minimum cash incentive payable expressed as a percentage of the individual base salary.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage" xlink:to="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage_doc" xml:lang="en-US">Maximum cash incentive payable expressed as a percentage of the individual base salary.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount" xlink:to="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount_doc" xml:lang="en-US">Minimum cash incentive payable under Management Incentive Plan.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount" xlink:to="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount_doc" xml:lang="en-US">Maximum cash incentive payable under Management Incentive Plan.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends" xlink:to="PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends_doc" xml:lang="en-US">Quarterly cash dividends and cumulative accrued and unpaid dividends.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IntercompanyRevenues" xlink:to="PESI_IntercompanyRevenues_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_IntercompanyRevenues_doc" xml:lang="en-US">The intercompany revenue reported for the transaction within the fellow concerns of the entity.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SignificantPaymentTerms" xlink:to="PESI_SignificantPaymentTerms_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SignificantPaymentTerms_doc" xml:lang="en-US">Represents general payment term from invoicing date provided to customers.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrent_2_lbl" xml:lang="en-US">Assets, Current</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentGross" xlink:to="us-gaap_PropertyPlantAndEquipmentGross_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_2_lbl" xml:lang="en-US">Property, Plant and Equipment, Gross</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2_lbl" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_2_lbl" xml:lang="en-US">Property, Plant and Equipment, Net</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_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_LiabilitiesNoncurrent" xlink:to="us-gaap_LiabilitiesNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesNoncurrent_2_lbl" xml:lang="en-US">Liabilities, Noncurrent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_2_lbl" xml:lang="en-US">Liabilities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockValue" xlink:to="us-gaap_TreasuryStockValue_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TreasuryStockValue_2_lbl" xml:lang="en-US">Treasury Stock, Value</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquity_2_lbl" xml:lang="en-US">Stockholders' Equity Attributable to Parent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4_lbl" xml:lang="en-US">Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_2_lbl" xml:lang="en-US">Liabilities and Equity</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnDispositionOfAssets1" xlink:to="us-gaap_GainLossOnDispositionOfAssets1_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_2_lbl" xml:lang="en-US">Gain (Loss) on Disposition of Assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingIncomeLoss_2_lbl" xml:lang="en-US">Operating Income (Loss)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpense_2_lbl" xml:lang="en-US">Interest Expense</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancingInterestExpense" xlink:to="us-gaap_FinancingInterestExpense_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancingInterestExpense_2_lbl" xml:lang="en-US">Financing Interest Expense</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxExpenseBenefit_3_lbl" xml:lang="en-US">Income Tax Expense (Benefit)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_2_lbl" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesOutstanding" xlink:to="us-gaap_SharesOutstanding_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharesOutstanding_3_lbl" xml:lang="en-US">Shares, Outstanding</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnDispositionOfAssets" xlink:to="us-gaap_GainLossOnDispositionOfAssets_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainLossOnDispositionOfAssets_2_lbl" xml:lang="en-US">Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_2_lbl" xml:lang="en-US">Increase (Decrease) in Accounts Receivable</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInUnbilledReceivables" xlink:to="us-gaap_IncreaseDecreaseInUnbilledReceivables_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInUnbilledReceivables_2_lbl" xml:lang="en-US">Increase (Decrease) in Unbilled Receivables</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_2_lbl" xml:lang="en-US">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" xlink:to="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_3_lbl" xml:lang="en-US">pesi_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities, Continuing Operations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities, Continuing Operations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLinesOfCredit" xlink:to="us-gaap_RepaymentsOfLinesOfCredit_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfLinesOfCredit_2_lbl" xml:lang="en-US">Repayments of Lines of Credit</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLongTermDebt" xlink:to="us-gaap_RepaymentsOfLongTermDebt_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfLongTermDebt_2_lbl" xml:lang="en-US">Repayments of Long-term Debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities, Continuing Operations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_2_lbl" xml:lang="en-US">Cash and Cash Equivalents, Period Increase (Decrease)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnbilledReceivablesCurrent" xlink:to="us-gaap_UnbilledReceivablesCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnbilledReceivablesCurrent_2_lbl" xml:lang="en-US">Unbilled Receivables, Current</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_UnbilledReceivablesNonCurrent" xlink:to="PESI_UnbilledReceivablesNonCurrent_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_UnbilledReceivablesNonCurrent_3_lbl" xml:lang="en-US">UnbilledReceivablesNonCurrent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_2_lbl" xml:lang="en-US">Finite-Lived Intangible Assets, Accumulated Amortization</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_3_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_2_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_2_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_2_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_3_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price</link:label>
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<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>11
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6806893152">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Document and Entity Information - shares<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>May 04, 2018</div></th>
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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_PESI_DocumentAndEntityInformationAbstract', window );"><strong>Document And Entity Information</strong></a></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_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">PERMA FIX ENVIRONMENTAL SERVICES INC<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_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000891532<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_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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<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">Mar. 31,  2018<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_AmendmentFlag', window );">Amendment Flag</a></td>
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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_CurrentFiscalYearEndDate', window );">Current Fiscal Year End Date</a></td>
<td class="text">--12-31<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_EntityFilerCategory', window );">Entity Filer Category</a></td>
<td class="text">Smaller Reporting Company<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_EntityCommonStockSharesOutstanding', window );">Entity Common Stock, Shares Outstanding</a></td>
<td class="text">&#160;<span></span>
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<td class="nump">11,762,548<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_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">PESI<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_DocumentFiscalPeriodFocus', window );">Document Fiscal Period Focus</a></td>
<td class="text">Q1<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_DocumentFiscalYearFocus', window );">Document Fiscal Year Focus</a></td>
<td class="text">2018<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>If the value is true, then the document is an amendment to previously-filed/accepted document.</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>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">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY.</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>This is focus fiscal year of the document report in CCYY 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">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-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">
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<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">
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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>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 12b<br> -Subsection 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_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_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: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting 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>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_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_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 12b<br> -Subsection 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_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_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>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>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6813458736">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Consolidated Balance Sheets - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th" colspan="2"><div>Dec. 31, 2017</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>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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</a></td>
<td class="nump">$ 2,916<span></span>
</td>
<td class="nump">$ 1,063<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsReceivableNetCurrent', window );">Accounts receivable, net of allowance for doubtful accounts of $725 and $720, respectively</a></td>
<td class="nump">4,762<span></span>
</td>
<td class="nump">7,940<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_UnbilledContractsReceivableCurrent', window );">Unbilled receivables - current</a></td>
<td class="nump">4,574<span></span>
</td>
<td class="nump">4,547<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<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</a></td>
<td class="nump">317<span></span>
</td>
<td class="nump">393<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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 and other assets</a></td>
<td class="nump">3,304<span></span>
</td>
<td class="nump">3,281<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent', window );">Current assets related to discontinued operations</a></td>
<td class="nump">94<span></span>
</td>
<td class="nump">89<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">15,967<span></span>
</td>
<td class="nump">17,313<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentNetAbstract', window );"><strong>Property and equipment:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_BuildingsAndLand', window );">Buildings and land</a></td>
<td class="nump">23,806<span></span>
</td>
<td class="nump">23,806<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MachineryAndEquipmentGross', window );">Equipment</a></td>
<td class="nump">33,254<span></span>
</td>
<td class="nump">33,182<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_Vehicles', window );">Vehicles</a></td>
<td class="nump">379<span></span>
</td>
<td class="nump">393<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LeaseholdImprovementsGross', window );">Leasehold improvements</a></td>
<td class="nump">11,549<span></span>
</td>
<td class="nump">11,549<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FurnitureAndFixturesGross', window );">Office furniture and equipment</a></td>
<td class="nump">1,670<span></span>
</td>
<td class="nump">1,670<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConstructionInProgressGross', window );">Construction-in-progress</a></td>
<td class="nump">826<span></span>
</td>
<td class="nump">653<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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_PropertyPlantAndEquipmentGross', window );">Total property and equipment</a></td>
<td class="nump">71,484<span></span>
</td>
<td class="nump">71,253<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment', window );">Less accumulated depreciation</a></td>
<td class="num">(56,654)<span></span>
</td>
<td class="num">(56,383)<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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_PropertyPlantAndEquipmentNet', window );">Net property and equipment</a></td>
<td class="nump">14,830<span></span>
</td>
<td class="nump">14,870<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale', window );">Property and equipment related to discontinued operations</a></td>
<td class="nump">81<span></span>
</td>
<td class="nump">81<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract', window );"><strong>Intangibles and other long term assets:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_Permits', window );">Permits</a></td>
<td class="nump">8,406<span></span>
</td>
<td class="nump">8,419<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherIntangibleAssetsNet', window );">Other intangible assets - net</a></td>
<td class="nump">1,432<span></span>
</td>
<td class="nump">1,487<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_UnbilledContractsReceivableNoncurrent', window );">Unbilled receivables - non-current</a></td>
<td class="nump">92<span></span>
</td>
<td class="nump">184<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_FiniteRiskSinkingFund', window );">Finite risk sinking fund</a></td>
<td class="nump">15,726<span></span>
</td>
<td class="nump">15,676<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsNoncurrent', window );">Other assets</a></td>
<td class="nump">1,272<span></span>
</td>
<td class="nump">1,313<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent', window );">Other assets related to discontinued operations</a></td>
<td class="nump">176<span></span>
</td>
<td class="nump">195<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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">57,982<span></span>
</td>
<td class="nump">59,538<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
</tr>
<tr class="ro">
<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>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<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">3,616<span></span>
</td>
<td class="nump">3,537<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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">4,785<span></span>
</td>
<td class="nump">4,782<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalTransportationAccrual', window );">Disposal/transportation accrual</a></td>
<td class="nump">1,478<span></span>
</td>
<td class="nump">2,071<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredRevenueCurrent', window );">Deferred revenue</a></td>
<td class="nump">4,620<span></span>
</td>
<td class="nump">4,311<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts', window );">Accrued closure costs - current</a></td>
<td class="nump">1,864<span></span>
</td>
<td class="nump">2,791<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtCurrent', window );">Current portion of long-term debt</a></td>
<td class="nump">1,184<span></span>
</td>
<td class="nump">1,184<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent', window );">Current liabilities related to discontinued operations</a></td>
<td class="nump">892<span></span>
</td>
<td class="nump">905<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">18,439<span></span>
</td>
<td class="nump">19,581<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent', window );">Accrued closure costs</a></td>
<td class="nump">5,579<span></span>
</td>
<td class="nump">5,604<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesNoncurrent', window );">Other long-term liabilities</a></td>
<td class="nump">1,207<span></span>
</td>
<td class="nump">1,191<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredTaxLiabilitiesNoncurrent', window );">Deferred tax liabilities</a></td>
<td class="nump">1,716<span></span>
</td>
<td class="nump">1,694<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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 portion</a></td>
<td class="nump">2,367<span></span>
</td>
<td class="nump">2,663<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent', window );">Long-term liabilities related to discontinued operations</a></td>
<td class="nump">351<span></span>
</td>
<td class="nump">359<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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_LiabilitiesNoncurrent', window );">Total long-term liabilities</a></td>
<td class="nump">11,220<span></span>
</td>
<td class="nump">11,511<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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_Liabilities', window );">Total liabilities</a></td>
<td class="nump">29,659<span></span>
</td>
<td class="nump">31,092<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingencies', window );">Commitments and Contingencies (Note 9)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TemporaryEquityCarryingAmountAttributableToParent', window );">Series B Preferred Stock of subsidiary, $1.00 par value; 1,467,396 shares authorized, 1,284,730 shares issued and outstanding, liquidation value $1.00 per share plus accrued and unpaid dividends of $1,011 and $995, respectively</a></td>
<td class="nump">1,285<span></span>
</td>
<td class="nump">1,285<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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' Equity:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockValue', window );">Preferred Stock, $.001 par value; 2,000,000 shares authorized, no shares issued and outstanding</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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, $.001 par value; 30,000,000 shares authorized; 11,754,697 and 11,738,623 shares issued, respectively; 11,747,055 and 11,730,981 shares outstanding, respectively</a></td>
<td class="nump">12<span></span>
</td>
<td class="nump">12<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<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">106,523<span></span>
</td>
<td class="nump">106,417<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(78,074)<span></span>
</td>
<td class="num">(77,893)<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax', window );">Accumulated other comprehensive loss</a></td>
<td class="num">(120)<span></span>
</td>
<td class="num">(112)<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockValue', window );">Less Common Stock in treasury, at cost; 7,642 shares</a></td>
<td class="num">(88)<span></span>
</td>
<td class="num">(88)<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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 Perma-Fix Environmental Services, Inc. stockholders' equity</a></td>
<td class="nump">28,253<span></span>
</td>
<td class="nump">28,336<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MinorityInterest', window );">Non-controlling interest</a></td>
<td class="num">(1,215)<span></span>
</td>
<td class="num">(1,175)<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Total stockholders' equity</a></td>
<td class="nump">27,038<span></span>
</td>
<td class="nump">27,161<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></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' equity</a></td>
<td class="nump">$ 57,982<span></span>
</td>
<td class="nump">$ 59,538<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr><td colspan="4"></td></tr>
<tr><td colspan="4"><table class="outerFootnotes" width="100%"><tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">Segment assets have been adjusted for intercompany accounts to reflect actual assets for each segment.</td>
</tr></table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as assets attributed to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer, or assets retained by the Company upon divestiture of facility.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_BuildingsAndLand">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 long-lived, depreciable assets that include building structures held for productive use including any addition, improvement, or renovation to the structure, such as interior masonry, interior flooring, electrical, and plumbing. And the carrying amount as of the balance sheet date of real estate held for productive use. This excludes land held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_BuildingsAndLand</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as other assets attributable to discontinued operations not held for sale,</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount Classified as assets attributed to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer, or assets retained by the Company upon divestiture of facility.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalTransportationAccrual">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value of the obligation (known or estimated) arising from requirements to perform disposal/transportation activities, payable in twelve months or in the next operating cycle if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalTransportationAccrual</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_FiniteRiskSinkingFund">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>As of the balance sheet date, the total amount into the sinking fund, along with interest income earned, in connection for the company's closure policies.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_FiniteRiskSinkingFund</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as liabilities attributed to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer, or liabilities retained by the Company upon divestiture of facility.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as liabilities attributable to disposal group held for sale or disposed of, including liabilities not held for sale, expected to be disposed of after one year or the normal operating cycle, if longer, or liabilities retained by the Company upon divestiture of facility.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_Permits">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount (net of any accumulated depreciation) as of the balance sheet date of operating permits having definite or indefinite lives.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_Permits</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_UnbilledContractsReceivableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The current portion of unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance there under exceeds the amounts billed under the terms thereof as of the date of the balance sheet.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_UnbilledContractsReceivableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_UnbilledContractsReceivableNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 non-current portion of unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_UnbilledContractsReceivableNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_Vehicles">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount as of the balance sheet date of long-lived depreciable asset used in transporting goods or used for performing services. Examples includes cars, trucks, and forklifts.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_Vehicles</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_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 due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.</p></div>
<a 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 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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_AccountsReceivableNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of estimated costs accrued as of the balance sheet date to comply with regulatory requirements pertaining to the retirement of a waste management facility (such as a landfill or waste treatment facility). Represents the portion that will be paid within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6392692&amp;loc=d3e7535-110849<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6911-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 35<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6392603&amp;loc=d3e7037-110846<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 25<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=6392544&amp;loc=d3e6290-110844<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The estimated amount of costs required as of the balance sheet date to comply with regulatory requirements pertaining to the retirement of a waste management facility, which will be paid after one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 25<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=6392544&amp;loc=d3e6290-110844<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.24)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6392692&amp;loc=d3e7535-110849<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 35<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6392603&amp;loc=d3e7037-110846<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.14)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -URI http://asc.fasb.org/extlink&amp;oid=84228862&amp;loc=d3e681-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=84228862&amp;loc=SL7669646-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=84228862&amp;loc=d3e637-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 45<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=64808268&amp;loc=d3e32022-110900<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14A<br> -URI http://asc.fasb.org/extlink&amp;oid=84228862&amp;loc=SL7669686-108580<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6450520&amp;loc=d3e32583-110901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdditionalPaidInCapital">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdditionalPaidInCapital</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(12))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&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_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6801-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=82887183&amp;loc=d3e6676-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=82887183&amp;loc=d3e6676-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3044-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommitmentsAndContingencies">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.(a),19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=82911808&amp;loc=d3e14326-108349<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.25)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_CommitmentsAndContingencies</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConstructionInProgressGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI 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>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConstructionInProgressGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredRevenueCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b).Q1(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6935-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 13.A.4(a).Q1)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b).Q2)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(c).Q3)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredRevenueCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredTaxLiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 and classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=84176650&amp;loc=d3e31931-109318<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=84176650&amp;loc=d3e31958-109318<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=84176650&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_DeferredTaxLiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FurnitureAndFixturesGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI 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>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FurnitureAndFixturesGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=68049868&amp;loc=d3e3927-108312<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=82887183&amp;loc=d3e6676-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LeaseholdImprovementsGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&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>
<td style="white-space:nowrap;">us-gaap_LeaseholdImprovementsGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Liabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19-26)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_Liabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesAndStockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(32))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_LiabilitiesAndStockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</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_LiabilitiesCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrentAbstract</td>
</tr>
<tr>
<td style="padding-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_LiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 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://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 201.5-02(26))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 201.5-02(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 201.5-02(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_LiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19,20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount 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://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MachineryAndEquipmentGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6812-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI 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>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MachineryAndEquipmentGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MinorityInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority 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/presentationRef<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(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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)(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_MinorityInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of noncurrent assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherIntangibleAssetsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated amortization of finite-lived and indefinite-lived intangible assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherIntangibleAssetsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherLiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.24)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_PreferredStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PrepaidExpenseAndOtherAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=82887183&amp;loc=d3e6676-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PrepaidExpenseAndOtherAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_PropertyPlantAndEquipmentGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(14))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNetAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNetAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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://www.xbrl.org/2003/role/presentationRef<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=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=27012166&amp;loc=d3e187085-122770<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=27010918&amp;loc=d3e74512-122707<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>
</tr>
<tr>
<td style="padding-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_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4I<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4590271-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4568740-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4568447-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TemporaryEquityCarryingAmountAttributableToParent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.</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_TemporaryEquityCarryingAmountAttributableToParent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6405813&amp;loc=d3e23239-112655<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29,30)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=6405834&amp;loc=d3e23315-112656<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6799590976">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Consolidated Balance Sheets (Parenthetical) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</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_AllowanceForDoubtfulAccountsReceivableCurrent', window );">Accounts receivable, allowance for doubtful accounts</a></td>
<td class="nump">$ 725<span></span>
</td>
<td class="nump">$ 720<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockParOrStatedValuePerShare', window );">Preferred stock, par value</a></td>
<td class="nump">$ 0.001<span></span>
</td>
<td class="nump">$ .001<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesAuthorized', window );">Preferred stock, shares authorized</a></td>
<td class="nump">2,000,000<span></span>
</td>
<td class="nump">2,000,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesIssued', window );">Preferred stock, shares issued</a></td>
<td class="text"> <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_PreferredStockSharesOutstanding', window );">Preferred stock, shares outstanding</a></td>
<td class="text"> <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_CommonStockParOrStatedValuePerShare', window );">Common stock, par value</a></td>
<td class="nump">$ 0.001<span></span>
</td>
<td class="nump">$ 0.001<span></span>
</td>
</tr>
<tr class="re">
<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">30,000,000<span></span>
</td>
<td class="nump">30,000,000<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_CommonStockSharesIssued', window );">Common stock, shares issued</a></td>
<td class="nump">11,754,697<span></span>
</td>
<td class="nump">11,738,623<span></span>
</td>
</tr>
<tr class="re">
<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">11,747,055<span></span>
</td>
<td class="nump">11,730,981<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockShares', window );">Treasury stock, shares</a></td>
<td class="nump">7,642<span></span>
</td>
<td class="nump">7,642<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_SeriesBPreferredStockMember', window );">Series B Preferred Stock [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_TemporaryEquityParOrStatedValuePerShare', window );">Preferred stock of subsidiary, par value</a></td>
<td class="nump">$ 1.00<span></span>
</td>
<td class="nump">$ 1.00<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TemporaryEquitySharesAuthorized', window );">Preferred stock of subsidiary, shares authorized</a></td>
<td class="nump">1,467,396<span></span>
</td>
<td class="nump">1,467,396<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TemporaryEquitySharesIssued', window );">Preferred stock of subsidiary, shares issued</a></td>
<td class="nump">1,284,730<span></span>
</td>
<td class="nump">1,284,730<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TemporaryEquitySharesOutstanding', window );">Preferred stock of subsidiary, shares outstanding</a></td>
<td class="nump">1,284,730<span></span>
</td>
<td class="nump">1,284,730<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TemporaryEquityLiquidationPreferencePerShare', window );">Preferred stock of subsidiary, liquidation value</a></td>
<td class="nump">$ 1.00<span></span>
</td>
<td class="nump">$ 1.00<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_TemporaryEquityAccruedAndUnpaidDividends', window );">Preferred stock of subsidiary, accrued and unpaid dividends</a></td>
<td class="nump">$ 1,011<span></span>
</td>
<td class="nump">$ 995<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_TemporaryEquityAccruedAndUnpaidDividends">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 dividends accrued and unpaid on an entity's issued and outstanding stock which is not included within permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_TemporaryEquityAccruedAndUnpaidDividends</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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>A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.</p></div>
<a 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 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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=84173941&amp;loc=d3e5074-111524<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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>num: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://www.xbrl.org/2003/role/presentationRef<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=6877327&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://www.xbrl.org/2003/role/presentationRef<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=6877327&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://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=84159872&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_CommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_PreferredStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_PreferredStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TemporaryEquityLiquidationPreferencePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 per share liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_TemporaryEquityLiquidationPreferencePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_TemporaryEquityParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Per share amount of par value or stated value of stock classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (27)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 480<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=65877616&amp;loc=d3e177068-122764<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TemporaryEquityParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_TemporaryEquitySharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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(27)(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_TemporaryEquitySharesAuthorized</td>
</tr>
<tr>
<td style="padding-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_TemporaryEquitySharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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(27)(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_TemporaryEquitySharesIssued</td>
</tr>
<tr>
<td style="padding-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_TemporaryEquitySharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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(27)(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_TemporaryEquitySharesOutstanding</td>
</tr>
<tr>
<td style="padding-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_TreasuryStockShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29,30)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6405813&amp;loc=d3e23239-112655<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_SeriesBPreferredStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_SeriesBPreferredStockMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6799674576">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Consolidated Statements of Operations (Unaudited) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Income Statement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SalesRevenueNet', window );">Revenues</a></td>
<td class="nump">$ 12,658,000<span></span>
</td>
<td class="nump">$ 12,707,000<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_CostOfGoodsSold', window );">Cost of goods sold</a></td>
<td class="nump">9,337,000<span></span>
</td>
<td class="nump">9,988,000<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">3,321,000<span></span>
</td>
<td class="nump">2,719,000<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_SellingGeneralAndAdministrativeExpense', window );">Selling, general and administrative expenses</a></td>
<td class="nump">2,780,000<span></span>
</td>
<td class="nump">2,850,000<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_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="nump">232,000<span></span>
</td>
<td class="nump">389,000<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_GainLossOnDispositionOfAssets1', window );">Gain on disposal of property and equipment</a></td>
<td class="num">(8,000)<span></span>
</td>
<td class="text"> <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 );">Income (loss) from operations</a></td>
<td class="nump">317,000<span></span>
</td>
<td class="num">(520,000)<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_NonoperatingIncomeExpenseAbstract', window );"><strong>Other income (expense):</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="nump">49,000<span></span>
</td>
<td class="nump">35,000<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_InterestExpense', window );">Interest expense</a></td>
<td class="num">(53,000)<span></span>
</td>
<td class="num">(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_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="num">(9,000)<span></span>
</td>
<td class="num">(9,000)<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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments', window );">Income (loss) from continuing operations before taxes</a></td>
<td class="nump">304,000<span></span>
</td>
<td class="num">(594,000)<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_IncomeTaxExpenseBenefit', window );">Income tax expense</a></td>
<td class="num">(51,000)<span></span>
</td>
<td class="num">(81,000)<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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Income (loss) from continuing operations, net of taxes</a></td>
<td class="nump">253,000<span></span>
</td>
<td class="num">(675,000)<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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity', window );">Loss from discontinued operations (net of taxes of $0)</a></td>
<td class="num">(157,000)<span></span>
</td>
<td class="num">(131,000)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net income (loss)</a></td>
<td class="nump">96,000<span></span>
</td>
<td class="num">(806,000)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest', window );">Net loss attributable to non-controlling interest</a></td>
<td class="num">(40,000)<span></span>
</td>
<td class="num">(79,000)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="nump">$ 136,000<span></span>
</td>
<td class="num">$ (727,000)<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_EarningsPerShareBasicAndDilutedAbstract', window );"><strong>Net income (loss) per common share attributable to Perma-Fix Environmental Services, Inc. stockholders - basic and diluted:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare', window );">Continuing operations</a></td>
<td class="nump">$ 0.02<span></span>
</td>
<td class="num">$ (0.05)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare', window );">Discontinued operations</a></td>
<td class="num">(.01)<span></span>
</td>
<td class="num">(.01)<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_EarningsPerShareBasicAndDiluted', window );">Net income (loss) per common share</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="num">$ (0.06)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract', window );"><strong>Number of common shares used in computing net income (loss) per share:</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_WeightedAverageNumberOfSharesOutstandingBasic', window );">Basic</a></td>
<td class="nump">11,747,000<span></span>
</td>
<td class="nump">11,681,000<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_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted</a></td>
<td class="nump">11,773,000<span></span>
</td>
<td class="nump">11,681,000<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_CostOfGoodsSold">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total costs related to goods produced and sold 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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostOfGoodsSold</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_EarningsPerShareBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or 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>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_EarningsPerShareBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_EarningsPerShareBasicAndDilutedAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_EarningsPerShareBasicAndDilutedAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancingInterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This element represents interest incurred for borrowed money which was used to produce goods or render services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<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=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancingInterestExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainLossOnDispositionOfAssets1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=68055307&amp;loc=d3e2443-110228<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainLossOnDispositionOfAssets1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GrossProfit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<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=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GrossProfit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.</p></div>
<a 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 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)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted 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_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721675-107760<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721525-107759<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721523-107759<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e957-107759<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e1012-107759<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=d3e1361-107760<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same.</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_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (a),(b)<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=d3e32639-109319<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=26873400&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_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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6450988&amp;loc=d3e26243-108391<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=64930785&amp;loc=d3e28555-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestIncomeOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of interest income earned from interest bearing assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestIncomeOther</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
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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 Net Income (Loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591551-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<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">
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<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">
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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>
<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_OperatingIncomeLoss</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_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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591552-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591551-111686<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<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_ProfitLoss</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ResearchAndDevelopmentExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ResearchAndDevelopmentExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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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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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SalesRevenueNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SalesRevenueNet</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SellingGeneralAndAdministrativeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<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=63488584&amp;loc=d3e20235-122688<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section 30<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=68048583&amp;loc=d3e3636-108311<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SellingGeneralAndAdministrativeExpense</td>
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<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/presentationRef<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=96947427&amp;loc=d3e1505-109256<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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">
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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>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/presentationRef<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=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=96947427&amp;loc=d3e1448-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>na</td>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6804268128">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Consolidated Statements of Operations (Unaudited) (Parenthetical) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
</tr>
<tr class="re">
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation', window );">Loss from discontinued operations, tax</a></td>
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</td>
<td class="nump">$ 0<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_DiscontinuedOperationTaxEffectOfDiscontinuedOperation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=84230637&amp;loc=d3e32672-109319<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721525-107759<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721523-107759<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=d3e1361-107760<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=79507043&amp;loc=d3e38679-109324<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721675-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e1012-107759<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</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 );">- 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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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6813562688">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
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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_StatementOfIncomeAndComprehensiveIncomeAbstract', window );"><strong>Statement of Comprehensive Income [Abstract]</strong></a></td>
<td class="text">&#160;<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_us-gaap_ProfitLoss', window );">Net income (loss)</a></td>
<td class="nump">$ 96<span></span>
</td>
<td class="num">$ (806)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract', window );"><strong>Other comprehensive (loss) income:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax', window );">Foreign currency translation (loss) gain</a></td>
<td class="num">(8)<span></span>
</td>
<td class="nump">12<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent', window );">Total other comprehensive (loss) income</a></td>
<td class="num">(8)<span></span>
</td>
<td class="nump">12<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_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest', window );">Comprehensive income (loss)</a></td>
<td class="nump">88<span></span>
</td>
<td class="num">(794)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest', window );">Comprehensive loss attributable to non-controlling interest</a></td>
<td class="num">(40)<span></span>
</td>
<td class="num">(79)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTax', window );">Comprehensive income (loss) attributable to Perma-Fix Environmental Services, Inc. stockholders</a></td>
<td class="nump">$ 128<span></span>
</td>
<td class="num">$ (715)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=84228862&amp;loc=d3e557-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
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</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>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591552-111686<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest</td>
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</tr>
</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_NetIncomeLossAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of Net Income (Loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591551-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<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_NetIncomeLossAttributableToNoncontrollingInterest</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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</tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 45<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=64808268&amp;loc=d3e32211-110900<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (a-c)<br> -URI http://asc.fasb.org/extlink&amp;oid=84228862&amp;loc=SL7669646-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6450520&amp;loc=d3e32583-110901<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=84228862&amp;loc=d3e637-108580<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 45<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=64808268&amp;loc=d3e32022-110900<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 45<br> -Paragraph 18<br> -URI http://asc.fasb.org/extlink&amp;oid=64808268&amp;loc=d3e32157-110900<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract</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 after tax of other comprehensive income (loss) attributable to parent entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569643-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent</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 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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591552-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591551-111686<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<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">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807188928">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Consolidated Statement of Stockholders' Equity (Unaudited) - 3 months ended Mar. 31, 2018 - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Common Stock [Member]</div></th>
<th class="th"><div>Additional Paid-In Capital [Member]</div></th>
<th class="th"><div>Common Stock Held In Treasury [Member]</div></th>
<th class="th"><div>Accumulated Other Comprehensive Loss [Member]</div></th>
<th class="th"><div>Non-controlling Interest in Subsidiary [Member]</div></th>
<th class="th"><div>Accumulated Deficit [Member]</div></th>
<th class="th"><div>Total</div></th>
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<td class="nump">$ 12<span></span>
</td>
<td class="nump">$ 106,417<span></span>
</td>
<td class="num">$ (88)<span></span>
</td>
<td class="num">$ (112)<span></span>
</td>
<td class="num">$ (1,175)<span></span>
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<td class="num">$ (77,893)<span></span>
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<td class="nump">$ 27,161<span></span>
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<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 );">Balance, shares at Dec. 31, 2017</a></td>
<td class="nump">11,738,623<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_AdoptionOfAccountingStandardsUpdates', window );">Adoption of accounting standards updates (Note 2)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(317)<span></span>
</td>
<td class="num">(317)<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_ProfitLoss', window );">Net income (loss)</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(40)<span></span>
</td>
<td class="nump">136<span></span>
</td>
<td class="nump">96<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_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(8)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(8)<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_StockIssuedDuringPeriodValueIssuedForServices', window );">Issuance of Common Stock for services</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">60<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">60<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_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices', window );">Issuance of Common Stock for services, shares</a></td>
<td class="nump">16,074<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock-Based Compensation</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">46<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">46<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_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Mar. 31, 2018</a></td>
<td class="nump">$ 12<span></span>
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<td class="nump">$ 106,523<span></span>
</td>
<td class="num">$ (88)<span></span>
</td>
<td class="num">$ (120)<span></span>
</td>
<td class="num">$ (1,215)<span></span>
</td>
<td class="num">$ (78,074)<span></span>
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<td class="nump">$ 27,038<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_SharesOutstanding', window );">Balance, shares at Mar. 31, 2018</a></td>
<td class="nump">11,754,697<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Adoption of accounting standards updates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_AdoptionOfAccountingStandardsUpdates</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</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 increase to additional paid-in capital (APIC) from recognition of equity-based compensation.</p></div>
<a 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 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=79507207&amp;loc=d3e4534-113899<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5047-113901<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=96864182&amp;loc=d3e11149-113907<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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=96864182&amp;loc=d3e11178-113907<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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>
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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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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (b,c)<br> -URI http://asc.fasb.org/extlink&amp;oid=64808268&amp;loc=d3e32211-110900<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=84228862&amp;loc=SL7669646-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax</td>
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<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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591552-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591551-111686<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<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_ProfitLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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_StockIssuedDuringPeriodSharesIssuedForServices">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesIssuedForServices</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueIssuedForServices">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueIssuedForServices</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4I<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4590271-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4568740-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4568447-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
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<head>
<title></title>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807293200">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Consolidated Statements of Cash Flows (Unaudited) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Cash flows from operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net income (loss)</a></td>
<td class="nump">$ 96,000<span></span>
</td>
<td class="num">$ (806,000)<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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity', window );">Less: loss from discontinued operations, net of taxes of $0</a></td>
<td class="num">(157,000)<span></span>
</td>
<td class="num">(131,000)<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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Income (loss) from continuing operations, net of taxes</a></td>
<td class="nump">253,000<span></span>
</td>
<td class="num">(675,000)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile income (loss) from continuing operations to cash provided by 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">372,000<span></span>
</td>
<td class="nump">1,155,000<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_AmortizationOfFinancingCostsAndDiscounts', window );">Amortization of debt issuance costs</a></td>
<td class="nump">8,000<span></span>
</td>
<td class="nump">9,000<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_DeferredIncomeTaxExpenseBenefit', window );">Deferred tax expense</a></td>
<td class="nump">22,000<span></span>
</td>
<td class="nump">35,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves', window );">Provision for (recovery of) bad debt reserves</a></td>
<td class="nump">13,000<span></span>
</td>
<td class="num">(17,000)<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_GainLossOnDispositionOfAssets', window );">Gain on disposal of plant, property, and equipment</a></td>
<td class="num">(8,000)<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_IssuanceOfStockAndWarrantsForServicesOrClaims', window );">Issuance of common stock for services</a></td>
<td class="nump">60,000<span></span>
</td>
<td class="nump">48,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_ShareBasedCompensationEmployeeAndDirector', window );">Stock-based compensation</a></td>
<td class="nump">46,000<span></span>
</td>
<td class="nump">23,000<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_IncreaseDecreaseInOperatingCapitalAbstract', window );"><strong>Changes in operating assets and liabilities of continuing operations</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">3,165,000<span></span>
</td>
<td class="nump">1,983,000<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_IncreaseDecreaseInUnbilledReceivables', window );">Unbilled receivables</a></td>
<td class="nump">65,000<span></span>
</td>
<td class="num">(1,133,000)<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_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets', window );">Prepaid expenses, inventories and other assets</a></td>
<td class="nump">348,000<span></span>
</td>
<td class="num">(392,000)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue', window );">Accounts payable, accrued expenses and unearned revenue</a></td>
<td class="num">(1,729,000)<span></span>
</td>
<td class="nump">975,000<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_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations', window );">Cash provided by continuing operations</a></td>
<td class="nump">2,615,000<span></span>
</td>
<td class="nump">2,011,000<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_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations', window );">Cash used in discontinued operations</a></td>
<td class="num">(181,000)<span></span>
</td>
<td class="num">(139,000)<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 );">Cash provided by operating activities</a></td>
<td class="nump">2,434,000<span></span>
</td>
<td class="nump">1,872,000<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_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 );">Purchases of property and equipment</a></td>
<td class="num">(248,000)<span></span>
</td>
<td class="num">(22,000)<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_ProceedsFromSaleOfPropertyPlantAndEquipment', window );">Proceeds from sale of plant, property, and equipment</a></td>
<td class="nump">8,000<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund', window );">Payment to finite risk sinking fund</a></td>
<td class="num">(50,000)<span></span>
</td>
<td class="num">(35,000)<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_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations', window );">Cash used in investing activities of continuing operations</a></td>
<td class="num">(290,000)<span></span>
</td>
<td class="num">(57,000)<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_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations', window );">Cash provided by investing activities of discontinued operations</a></td>
<td class="nump">17,000<span></span>
</td>
<td class="nump">17,000<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 );">Cash used in investing activities</a></td>
<td class="num">(273,000)<span></span>
</td>
<td class="num">(40,000)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>Cash flows from financing activities:</strong></a></td>
<td class="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_RepaymentsOfLinesOfCredit', window );">Repayments of revolving credit borrowings</a></td>
<td class="num">(14,033,000)<span></span>
</td>
<td class="num">(12,675,000)<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_ProceedsFromLinesOfCredit', window );">Borrowing on revolving credit</a></td>
<td class="nump">14,033,000<span></span>
</td>
<td class="nump">11,115,000<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_RepaymentsOfLongTermDebt', window );">Principal repayments of long term debt</a></td>
<td class="num">(304,000)<span></span>
</td>
<td class="num">(304,000)<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_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations', window );">Cash used in financing activities</a></td>
<td class="num">(304,000)<span></span>
</td>
<td class="num">(1,864,000)<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_EffectOfExchangeRateOnCash', window );">Effect of exchange rate changes on cash</a></td>
<td class="num">(4,000)<span></span>
</td>
<td class="nump">3,000<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_CashAndCashEquivalentsPeriodIncreaseDecrease', window );">Increase (decrease) in cash</a></td>
<td class="nump">1,853,000<span></span>
</td>
<td class="num">(29,000)<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_CashAndCashEquivalentsAtCarryingValue', window );">Cash at beginning of period</a></td>
<td class="nump">1,063,000<span></span>
</td>
<td class="nump">163,000<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_CashAndCashEquivalentsAtCarryingValue', window );">Cash at end of period</a></td>
<td class="nump">2,916,000<span></span>
</td>
<td class="nump">134,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SupplementalCashFlowInformationAbstract', window );"><strong>Supplemental disclosure:</strong></a></td>
<td class="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_InterestPaidNet', window );">Interest paid</a></td>
<td class="nump">54,000<span></span>
</td>
<td class="nump">102,000<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_IncomeTaxesPaid', window );">Income taxes paid</a></td>
<td class="nump">$ 96,000<span></span>
</td>
<td class="nump">$ 12,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the amount payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid and changes in unearned revenue.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net cash inflow or outflow to the finite risk sinking fund for the Company's closure policy.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_ProceedsFromRepaymentsOfFiniteRiskSinkingFund</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 current period expense charged (recovery) against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected) and miscellaneous other reserves.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_ProvisionRecoveryForDoubtfulAccountsAndOtherNoncashReserves</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_ShareBasedCompensationEmployeeAndDirector">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of noncash, equity-based employee and outside director remuneration. This may include the value of stock options, amortization of restricted stock, and adjustment for officers compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_ShareBasedCompensationEmployeeAndDirector</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AmortizationOfFinancingCostsAndDiscounts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&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_AmortizationOfFinancingCostsAndDiscounts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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://www.xbrl.org/2003/role/presentationRef<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=82887183&amp;loc=d3e6676-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3044-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 and cash equivalents. Cash and cash equivalents are the 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. Includes effect from exchange rate changes.</p></div>
<a 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 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=98514028&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=98513438&amp;loc=d3e33268-110906<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) of investing activities of 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/presentationRef<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=98514028&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredIncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=84230637&amp;loc=d3e32639-109319<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=26873400&amp;loc=d3e23780-122690<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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=34349781&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_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/presentationRef<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=98514028&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_EffectOfExchangeRateOnCash">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 effect of exchange rate changes on cash balances held in foreign currencies. Excludes cash equivalents.</p></div>
<a 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 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=98513438&amp;loc=d3e33268-110906<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EffectOfExchangeRateOnCash</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_GainLossOnDispositionOfAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=d3e1361-107760<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=84176398&amp;loc=d3e2941-110230<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainLossOnDispositionOfAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721675-107760<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721525-107759<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721523-107759<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e957-107759<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e1012-107759<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=d3e1361-107760<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxesPaid">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98513485&amp;loc=d3e4297-108586<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=98514028&amp;loc=d3e3536-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxesPaid</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</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://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsReceivable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOperatingCapitalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in prepaid expenses, and assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&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_IncreaseDecreaseInUnbilledReceivables">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 the amount of revenue for work performed for which billing has not occurred, net of uncollectible accounts.</p></div>
<a 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 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=98514028&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_IncreaseDecreaseInUnbilledReceivables</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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, after deduction of cash paid for capitalized interest, for interest. 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/presentationRef<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=98513485&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_InterestPaidNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) of financing activities, excluding 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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 26<br> -URI http://asc.fasb.org/extlink&amp;oid=98514028&amp;loc=d3e3574-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=98514028&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_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_NetCashProvidedByUsedInInvestingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 26<br> -URI http://asc.fasb.org/extlink&amp;oid=98514028&amp;loc=d3e3574-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) of investing activities, excluding 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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 26<br> -URI http://asc.fasb.org/extlink&amp;oid=98514028&amp;loc=d3e3574-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=98514028&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_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_NetCashProvidedByUsedInOperatingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3536-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</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_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3536-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=98514028&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquirePropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromLinesOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=98514028&amp;loc=d3e3255-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=26873400&amp;loc=d3e23780-122690<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromLinesOfCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=98514028&amp;loc=d3e3179-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591552-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591551-111686<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3291-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=26873400&amp;loc=d3e23780-122690<br></p></div>
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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://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3291-108585<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6634562192">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=84230637&amp;loc=d3e32672-109319<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721525-107759<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721523-107759<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=d3e1361-107760<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=79507043&amp;loc=d3e38679-109324<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721675-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e1012-107759<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6803580304">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation<br></strong></div></th>
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    <td style="width: 24px; font: 12pt Times New Roman, Times, Serif; text-align: justify"><font style="font-size: 10pt"><b>1. </b></font></td>
    <td style="font: 12pt Times New Roman, Times, Serif; text-align: justify"><font style="font-size: 10pt"><b><u>Basis of Presentation</u></b></font></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The consolidated condensed financial statements
included herein have been prepared by the Company (which may be referred to as we, us or our), without an audit, pursuant to the
rules and regulations of the Securities and Exchange Commission (&#8220;the Commission&#8221;). Certain information and note disclosures
normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States
of America (&#8220;U.S. GAAP&#8221;) have been condensed or omitted pursuant to such rules and regulations, although the Company
believes the disclosures which are made are adequate to make the information presented not misleading. Further, the consolidated
condensed financial statements reflect, in the opinion of management, all adjustments (which include only normal recurring adjustments)
necessary to present fairly the financial position and results of operations as of and for the periods indicated. The results of
operations for the three months ended March 31, 2018 are not necessarily indicative of results to be expected for the fiscal year
ending December 31, 2018.</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company suggests that these consolidated
condensed financial statements be read in conjunction with the consolidated financial statements and the notes thereto included
in the Company&#8217;s Annual Report on Form 10-K for the year ended December 31, 2017.</p><span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for organization, consolidation and basis of presentation of financial statements 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -URI http://asc.fasb.org/topic&amp;trid=2122149<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -URI http://asc.fasb.org/topic&amp;trid=2197479<br></p></div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6774922544">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies<br></strong></div></th>
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<tr><th class="th"><div>Mar. 31, 2018</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_SignificantAccountingPoliciesTextBlock', window );">Summary of Significant Accounting Policies</a></td>
<td class="text"><p style="margin: 0pt"></p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Our accounting policies are as set forth in
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>Recently Adopted Accounting Standards</b></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In May 2014, the Financial Accounting Standards
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Customers&#8221; followed by a series of related accounting standard updates (collectively referred to as &#8220;Topic 606&#8221;),
which superseded nearly all existing revenue recognition guidance. Topic 606 provides a single, comprehensive revenue recognition
model for all contracts with customers. Under the new standard, a five-step process is utilized in order to determine revenue recognition,
depicting the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in
exchange for those goods or services. Topic 606 also requires additional disclosure surrounding the nature, amount, timing and
uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments
and assets recognized from costs incurred to obtain or fulfill a contract. Topic 606 is effective for annual reporting periods
beginning after December 15, 2017 (including interim reporting periods within those periods). The new standard permits two implementation
approaches: the full retrospective method, in which case the standard would be applied to each prior reporting period presented
and the cumulative effect of applying the standard would be recognized at the earliest period shown, or the modified retrospective
method, in which case the cumulative effect of applying the standard would be recognized at the date of initial application. The
Company adopted Topic 606 effective January 1, 2018 under the modified retrospective approach to all contracts as of date of adoption.
The Company recognized the cumulative effect of initially adopting Topic 606 as an increase of approximately $317,000 to the opening
balance of accumulated deficit at January 1, 2018. The adoption of Topic 606 did not result in significant changes to our revenue
recognition model within our Treatment and Services Segments. The cumulative impact to the opening balance of accumulated deficit
at January 1, 2018 was primarily driven by changes to the timing of revenue recognition in certain immaterial waste streams within
our Treatment Segment. See &#8220;Note 3 &#8211; Revenue&#8221; for additional disclosures related to our revenues under the new
standard. The comparative previous period information continues to be reported under the accounting standards in effect for that
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The cumulative effect of the changes made to
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In accordance with Topic 606 requirements,
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

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<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In August 2016,
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(a consensus of the Emerging Issues Task Force),&#8221; which aims to eliminate diversity in practice in how certain cash receipts
and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other
Topics. Subsequently, in November 2016, the FASB issued ASU 2016-18, &#8220;Statement of Cash Flows (Topic 230), Restricted Cash,
a consensus of the FASB Emerging Issues Task Force,&#8221; which clarifies the guidance on the cash flow classification and presentation
of changes in restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash or restricted
cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total
amounts shown on the statement of cash flow. ASU 2016-15 and ASU 2016-18 are effective for annual reporting periods, and interim
periods therein, beginning after December 15, 2017. The adoption of these ASUs by the Company effective January 1, 2018 did not
have a material impact on </font>the Company&#8217;s financial position, results of operations, or cash flows.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In October 2016,
the FASB issued ASU 2016-16<i>, </i>&#8220;Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory,&#8221;
which eliminates the existing exception in U.S. GAAP prohibiting the recognition of the income tax consequences for intra-entity
asset transfers. Under ASU 2016-16, entities will be required to recognize the income tax consequences of intra-entity asset transfers
other than inventory when the transfer occurs. ASU 2016-16 is effective on a modified retrospective basis for fiscal years, and
for interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. The adoption of
ASU 2016-16 by the Company effective January 1, 2018 did not have a material impact on </font>the Company&#8217;s financial position,
results of operations, or cash flows.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In January 2017,
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ASU 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether
transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects
many areas of accounting including acquisition, disposals, goodwill and consolidation. This standard is effective for fiscal years
beginning after December 15, 2017, including interim periods within that reporting period. The adoption of ASU 2017-01 by the Company
effective January 1, 2018 did not have a material impact on </font>the Company&#8217;s financial position, results of operations,
or cash flows.</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In May 2017, the
FASB issued ASU 2017-09, &#8220;Compensation &#8211; Stock Compensation (Topic 718): Scope of Modification Accounting.&#8221; This
ASU provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply
modification accounting in Topic 718. ASU 2017-09 is effective for fiscal years beginning after December 15, 2017 and interim periods
within those fiscal years, and early adoption is permitted, including in an interim period. ASU 2017-09 is to be applied on a prospective
basis to an award modified on or after the adoption date. The adoption of ASU 2017-01 by the Company effective January 1, 2018
did not have a material impact on </font>the Company&#8217;s financial position, results of operations, or cash flows.</p>

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

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">In February 2016, the FASB
issued ASU No. 2016-02, &#8220;Leases (Topic 842).&#8221; Under ASU 2016-02, an entity will be required to recognize right-of-use
assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. ASU 2016-02 offers specific
accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative
and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing
and uncertainty of cash flows arising from leases. For public companies, ASU 2016-02 is effective for annual reporting periods
beginning after December 15, 2018, including interim periods within that reporting period, and requires a modified retrospective
adoption, with early adoption permitted. This ASU is effective January 1, 2019 for the Company. The Company is still evaluating
the potential impact of adopting this guidance on our financial statements.</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In February 2018,
FASB issued ASU 2018-02<i>, &#8220;</i></font><font style="color: #222222">Income Statement&#8212;Reporting Comprehensive Income
(Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income&#8221;. </font><font style="color: #252525">This
ASU allows for the reclassification of certain income tax effects related to the Tax Cuts and Jobs Act between &#8220;Accumulated
other comprehensive income&#8221; and &#8220;Retained earnings.&#8221; This ASU relates to the requirement that adjustments to
deferred tax liabilities and assets related to a change in tax laws or rates to be included in &#8220;Income from continuing operations&#8221;,
even in situations where the related items were originally recognized in &#8220;Other comprehensive income&#8221; (rather than
in &#8220;Income from continuing operations&#8221;). ASU 2018-02 is effective for all entities for fiscal years beginning after
December 15, 2018, and interim periods within those fiscal years, with early adoption permitted. Adoption of this ASU is to be
applied either in the period of adoption or retrospectively to each period in which the effect of the change in the tax laws or
rates were recognized. The Company is currently assessing the impact that this standard will have on its financial statements.</font></p><span></span>
</td>
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    <td style="width: 24px; font: 12pt Times New Roman, Times, Serif"><font style="font-size: 10pt"><b>3.</b></font></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">The Company accounts for revenue
in accordance with ASC Topic 606, which we adopted on January 1, 2018 using the modified retrospective method. The majority of
our revenue is derived from short term contracts with an original expected length of one year or less.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><b>Performance Obligation</b></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">A performance obligation is
a promise in a contract to transfer a distinct good or service to the customer and is the unit of account in Topic 606. A contract&#8217;s
transaction price is allocated to each distinct performance obligation and recognized as revenue as the performance obligation
is satisfied.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><i>Treatment Segment Revenues:</i></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">Contracts in our Treatment
Segment have a single performance obligation as the promise to receive, treat and dispose of waste is not separately identifiable
in the contract and, therefore, not distinct. Performance obligations are generally satisfied over time using the input method.
Under the input method, the Company uses a measure of progress divided into major phases which include receipt, treatment/processing
and shipment/final disposal. As major processing phases are completed and the costs are incurred, the proportional percentage of
revenue is recognized. Transaction price for Treatment Segment contracts are determined by the stated fixed rate per unit price
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><i>Services Segment Revenues:</i></p>

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the customer. This provision of services at the request of the customer is the performance obligation, which is satisfied over
time. Revenue earned from time and materials contracts is determined using the input method and is based on contractually defined
billing rates applied to services performed and materials delivered.</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">The Company&#8217;s primary
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work stream or task within the contract is considered to be a separate performance obligation. The transaction price is calculated
using an estimated cost to complete the various scope items to achieve the performance obligation as stipulated in the contract.
An estimate is prepared for each individual scope item in the contract and the transaction price is allocated on a time and materials
basis as services are provided. Revenue from cost reimbursement contracts is recognized over time using the input method based
on costs incurred, plus a proportionate amount of fee earned.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">Under fixed price contracts,
the objective of the project is not attained unless all scope items within the contract are completed and all of the services promised
within fixed fee contracts constitute a single performance obligation. Transaction price is estimated based upon the estimated
cost to complete the overall project. Revenue from fixed price contract is recognized over time using the output method based on
the percentage of project completion multiplied by the total fee as a measure of progress.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">The nature of our contracts
does not give rise to variable considerations.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><b>Significant Payment Terms</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><b>&#160;</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">Invoicing is based on schedules
established in customer contracts. Payment terms vary by customers but are generally established at 30 days from invoicing.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><b>Disaggregation of Revenue</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><b>&#160;</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">In general, the Company&#8217;s
business segmentation is aligned according to the nature and economic characteristics of our services and provides meaningful disaggregation
of each business segment&#8217;s results of operations. The following tables present further disaggregation of our revenues by
different categories for our Services and Treatment Segments:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
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    <td>&#160;</td>
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    <td>&#160;</td>
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    <td>&#160;</td>
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<tr style="vertical-align: bottom">
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The net decrease in our contract assets was
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our accounts receivable are impacted by these terms and the related timing of accounts receivable collections.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">Revenue recognized for the
three months ended March 31, 2018 and 2017 that was included in the contract liability balance at the beginning of each year was
$3,811,000 and $2,977,000, respectively. All revenue recognized in each period related to performance obligations satisfied within
the respective period.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><b>Incremental Costs to Obtain
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><b>&#160;</b></p>

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incremental costs incurred in obtaining contracts with our customer as incurred.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><b>Remaining Performance Obligations</b></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">The Company applies the practical
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expected durations of one year or less.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">The Company applies the transition
practical expedient in paragraph 606-10-65-1(f)(3) and does not disclose the amount of the transaction price allocated to the
remaining performance obligations or an explanation of when the Company expects to recognize that amount as revenue for periods
prior to the adoption of Topic 606.</p><span></span>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Capital Stock, Stock Plans and Stock-Based Compensation<br></strong></div></th>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company has certain stock option plans
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On January 13, 2017, the Company granted 6,000
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company estimates fair value of stock options
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price of the award, the expected term, the expected volatility of the Company&#8217;s stock over the option&#8217;s expected term,
the risk-free interest rate over the option&#8217;s expected term, and the expected annual dividend yield. The fair value of the
options granted on January 18, 2018 and January 13, 2017 as discussed above and the related assumptions used in the Black-Scholes
option model used to value the options granted were as follows:</p>

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

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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<tr style="vertical-align: bottom; background-color: white">
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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<tr style="vertical-align: bottom; background-color: white">
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    <td>&#160;</td>
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    <td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
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    <td style="text-align: justify"><font style="font-size: 10pt">The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.</font></td></tr>
<tr style="vertical-align: top">
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    <td style="text-align: justify">&#160;</td></tr>
<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

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

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
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    <td style="padding-bottom: 1.5pt">&#160;</td></tr>
<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td style="width: 1%"><font style="font-size: 10pt">$</font></td>
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<tr style="vertical-align: bottom; background-color: white">
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    <td style="border-bottom: black 1.5pt solid">&#160;</td>
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    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><br style="clear: both" />
&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">At March 31, 2018, the Company has approximately
$547,000 of total unrecognized compensation cost related to unvested options, of which $148,000 is expected to be recognized in
remaining 2018, $126,000 in 2019, $114,000 in 2020, $114,000 in 2021, with the remaining $45,000 in 2022.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The summary of the Company&#8217;s total Stock
Option Plans as of March 31, 2018 and March 31, 2017, and changes during the periods then ended, are presented below. The Company&#8217;s
Plans consist of the 2010 and 2017 Stock Option Plans and the 2003 Outside Directors Stock Plan:</p>

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

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt">Shares</font></td>
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    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt">Weighted Average Exercise</font><br />
<font style="font-size: 10pt">Price</font></td>
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    <td style="padding-bottom: 1.5pt">&#160;</td>
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<font style="font-size: 10pt">Value <sup>(3)</sup></font></td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
    <td style="width: 42%"><font style="font-size: 10pt">Options outstanding January 1, 2018</font></td>
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    <td style="width: 1%">&#160;</td>
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    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
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    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 12%; text-align: right">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: white">
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    <td>&#160;</td>
    <td>&#160;</td>
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    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
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    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right">&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right">&#160;</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right"><font style="font-size: 10pt">&#9472;</font></td>
    <td>&#160;</td>
    <td>&#160;</td>
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    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right">&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: white">
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    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: black 1.5pt solid; text-align: right">&#160;</td>
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    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: black 1.5pt solid">&#160;</td>
    <td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">&#9472;</font></td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt; text-align: right">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
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    <td style="padding-bottom: 1.5pt; text-align: right">&#160;</td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: black 2.25pt double; text-align: right">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">4.41</font></td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: white">
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    <td style="border-bottom: black 2.25pt double; text-align: right">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">$</font></td>
    <td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">6.13</font></td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">$</font></td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
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<font style="font-size: 10pt">Price</font></td>
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<font style="font-size: 10pt">Value <sup>(3)</sup></font></td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td style="width: 1%">&#160;</td>
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    <td style="width: 1%">&#160;</td>
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    <td style="width: 1%"><font style="font-size: 10pt">$</font></td>
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    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
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    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: white">
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    <td>&#160;</td>
    <td>&#160;</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -URI http://asc.fasb.org/topic&amp;trid=2228938<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 50<br> -URI http://asc.fasb.org/subtopic&amp;trid=2208855<br></p></div>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Long-Term Debt<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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    <td><font style="font-size: 10pt"><b>Revolving Credit </b>facility dated October 31, 2011, as amended, borrowings based upon eligible accounts receivable, subject to monthly borrowing base calculation, balance due March 24, 2021.<sup>(1)</sup></font></td>
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    <td style="width: 24px; text-align: justify"><font style="font-size: 10pt"><sup>(1)</sup></font></td>
    <td style="text-align: justify"><font style="font-size: 10pt">Our revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</font></td></tr>
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    <td style="text-align: justify"><font style="font-size: 10pt"><sup>(2)</sup></font></td>
    <td style="text-align: justify"><font style="font-size: 10pt">Net of debt issuance costs of ($107,000) and ($115,000) at March 31, 2018 and December 31, 2017, respectively.</font></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company entered into an Amended and Restated
Revolving Credit, Term Loan and Security Agreement, dated October 31, 2011 (&#8220;Amended Loan Agreement&#8221;), with PNC National
Association (&#8220;PNC&#8221;), acting as agent and lender. The Amended Loan Agreement has been amended from time to time since
the execution of the Amended Loan Agreement. The Amended Loan Agreement, as subsequently amended (&#8220;Revised Loan Agreement&#8221;),
provides the Company with the following credit facility with a maturity date of March 24, 2021: (a) up to $12,000,000 revolving
credit (&#8220;revolving credit&#8221;) and (b) a term loan (&#8220;term loan&#8221;) of approximately $6,100,000, which requires
monthly installments of approximately $101,600 (based on a seven-year amortization). The maximum that we can borrow under the revolving
credit is based on a percentage of eligible receivables (as defined) at any one time reduced by outstanding standby letters of
credit and borrowing reductions that our lender may impose from time to time.</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Under the Revised Loan Agreement, we have the
option of paying an annual rate of interest due on the revolving credit at prime plus 2% or London Inter Bank Offer Rate (&#8220;LIBOR&#8221;)
plus 3% and the term loan at prime plus 2.5% or LIBOR plus 3.5%.</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Pursuant to the Revised Loan Agreement, the
Company may terminate the Revised Loan Agreement, upon 90 days&#8217; prior written notice upon payment in full of its obligations
under the Revised Loan Agreement. The Company agreed to pay PNC 1.0% of the total financing had the Company paid off its obligations
on or before March 23, 2017, .50% of the total financing had the Company paid off its obligations after March 23, 2017 but prior
to or on March 23, 2018, and .25% of the total financing if the Company pays off its obligations after March 23, 2018 but prior
to or on March 23, 2019. No early termination fee shall apply if the Company pays off its obligations after March 23, 2019.</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">At March 31, 2018, the borrowing availability
under our revolving credit was approximately $2,823,000, based on our eligible receivables and includes an indefinite reduction
of borrowing availability of $2,000,000 that the Company&#8217;s lender has imposed. Our borrowing availability under our revolving
credit was also reduced by outstanding standby letters of credit totaling approximately $2,660,000.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company&#8217;s credit facility with PNC
contains certain financial covenants, along with customary representations and warranties. A breach of any of these financial
covenants, unless waived by PNC, could result in a default under our credit facility allowing our lender to immediately require
the repayment of all outstanding debt under our credit facility and terminate all commitments to extend further credit. The Company
met its quarterly financial covenants in the first quarter of 2018 and expects to meet its quarterly financial covenants in each
of the remaining quarters of 2018 and into the first half of 2019.</p><span></span>
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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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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>East Tennessee Materials and Energy Corporation (&#8220;M&amp;EC&#8221;)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2018</div></th></tr>
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    <td style="width: 24px; font: 12pt Times New Roman, Times, Serif"><font style="font-size: 10pt"><b>8. </b></font></td>
    <td style="font: 12pt Times New Roman, Times, Serif"><font style="font-size: 10pt"><b><u>East Tennessee Materials and Energy Corporation (&#8220;M&#38;EC&#8221;)</u></b></font></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company continues its plan to close its
M&#38;EC facility by the end of the M&#38;EC&#8217;s amended lease term of June 30, 2018. Operations at the M&#38;EC facility are
limited during the remaining term of the lease and the facility continues to transition waste shipments and operational capabilities
to our other Treatment Segment facilities, subject to customer requirements and regulatory approvals. Simultaneously, the Company
continues with closure and decommissioning activities in accordance with M&#38;EC&#8217;s license and permit requirements.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">At March 31, 2018, total accrued closure liabilities
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changes to the closure liabilities for the M&#38;EC facility from year end 2017:</p>

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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Commitments and Contingencies<br></strong></div></th>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>Hazardous Waste</b></p>

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

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

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

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

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

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company has a 25-year finite risk insurance
policy entered into in June 2003 with American International Group, Inc. (&#8220;AIG&#8221;), which provides financial assurance
to the applicable states for our permitted facilities in the event of unforeseen closure. The policy, as amended, provides for
a maximum allowable coverage of $39,000,000 and has available capacity to allow for annual inflation and other performance and
surety bond requirements. At March 31, 2018, our financial assurance coverage amount under this policy totaled approximately $29,911,000.
The Company has recorded $15,726,000 and $15,676,000 in sinking funds related to this policy in other long term assets on the accompanying
Consolidated Balance Sheets at March 31, 2018 and December 31, 2017, respectively, which includes interest earned of $1,255,000
and $1,205,000 on the sinking funds as of March 31, 2018 and December 31, 2017, respectively. Interest income for the three months
ended March 31, 2018 and 2017 was approximately $50,000 and $27,000, respectively. If the Company so elects, AIG is obligated to
pay the Company an amount equal to 100% of the sinking fund account balance in return for complete release of liability from both
the Company and any applicable regulatory agency using this policy as an instrument to comply with financial assurance requirements.</p>

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

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

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">From time to time, the Company is required
to post standby letters of credit and various bonds to support contractual obligations to customers and other obligations, including
facility closures. At March 31, 2018, the total amount of standby letters of credit outstanding totaled approximately $2,660,000
and the total amount of bonds outstanding totaled approximately $8,767,000.</p><span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for commitments and contingencies.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -URI http://asc.fasb.org/topic&amp;trid=2127136<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 440<br> -URI http://asc.fasb.org/topic&amp;trid=2144648<br></p></div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6597614128">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Discontinued Operations<br></strong></div></th>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company&#8217;s discontinued operations
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company&#8217;s discontinued operations
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our Perma-Fix of Michigan, Inc. subsidiary. This note requires 60 equal monthly installment payments by the buyer of approximately
$7,250 (which includes interest). At March 31, 2018, the outstanding amount on this note receivable totaled approximately $250,000,
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6783677136">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Operating Segments<br></strong></div></th>
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<p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify">In accordance with ASC 280, &#8220;Segment
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expenses; (2) whose operating results are regularly reviewed by the chief operating decision maker (&#8220;CODM&#8221;) to make
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    <td style="line-height: 107%">&#160;</td>
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    <td style="text-align: right; line-height: 107%"><font style="font: 10pt Times New Roman, Times, Serif">&#8212;</font></td>
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    <td style="line-height: 107%">&#160;</td>
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    <td style="text-align: right; line-height: 107%"><font style="font: 10pt Times New Roman, Times, Serif">&#8212;</font></td>
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    <td style="line-height: 107%">&#160;</td>
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<p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0">&#160;</p>

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

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    <td style="text-align: right; line-height: 107%"><font style="font: 10pt Times New Roman, Times, Serif">&#8212;</font></td>
    <td style="line-height: 107%">&#160;</td>
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    <td style="text-align: right; line-height: 107%"><font style="font: 10pt Times New Roman, Times, Serif">8</font></td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -URI http://asc.fasb.org/topic&amp;trid=2134510<br></p></div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6803577984">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Income Taxes<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company uses an estimated annual effective
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jurisdictions in which the Company operates, to determine its quarterly provision for income taxes.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Income tax expenses were $51,000 and $81,000
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effective tax rate was approximately (16.8%) for the three months ended March 31, 2018 as compared to a tax rate of approximately
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -URI http://asc.fasb.org/topic&amp;trid=2144680<br></p></div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6647787824">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Management Incentive Plans (&#8220;MIPs&#8221;)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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compensation based on achievement of performance thresholds, with the amount of such compensation established as a percentage
of the executive&#8217;s annual 2018 base salary on the approval date of the MIP. The potential target performance compensation
ranges from 5% to 100% of the 2018 base salary for the CEO ($13,350 to $267,000), 5% to 100% of the 2018 base salary for the CFO
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -URI http://asc.fasb.org/topic&amp;trid=2235017<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 712<br> -URI http://asc.fasb.org/topic&amp;trid=2197446<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 710<br> -URI http://asc.fasb.org/topic&amp;trid=2127225<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6803432720">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Subsequent Events<br></strong></div></th>
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</tr>
<tr><th class="th"><div>Mar. 31, 2018</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_SubsequentEventsAbstract', window );"><strong>Subsequent Events [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_SubsequentEventsTextBlock', window );">Subsequent Events</a></td>
<td class="text"><p style="margin: 0pt"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>14. <u>Subsequent Events</u></b></p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>M&#38;EC Series B Preferred Stock</i></p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Series B Preferred Stock (the &#8220;Series
B Preferred Stock&#8221;) of the Company&#8217;s consolidated subsidiary, M&#38;EC, is non-voting and non-convertible, has a $1.00
liquidation preference per share and may be redeemed at the option and sole discretion of M&#38;EC at any time, and from time to
time, from and after one year from the date of issuance of the Series B Preferred Stock for the purchase price of $1.00. Holders
of shares of M&#38;EC Series B Preferred Stock are entitled to receive, when, as and if declared by M&#38;EC&#8217;s board of directors
out of funds legally available for payment, cumulative dividends at the rate per annum of 5% per share on the liquidation preference
of $1.00 per share of Series B Preferred Stock. Dividends on the Series B Preferred Stock shall accrue without interest beginning
one year from the date of original issuance (June 25, 2001), and shall be payable in cash, if, when, and as declared by M&#38;EC
board, quarterly each year commencing on the first dividend due date following the expiration of one year from the date of original
issuance. On April 24, 2018, the Company announced a private exchange offer (&#8220;Exchange Offer&#8221;), to all holders of the
M&#38;EC Series B Preferred Stock , to exchange, for every share of Series B Preferred Stock tendered, (a) 0.1050805 shares of
newly issued common stock of the Company, par value $.001 per share (&#8220;Common Stock&#8221;), and (b) cash in lieu of fractional
shares of Common Stock that would otherwise be issuable to the tendering holder of Series B Preferred Stock, in an amount equal
to such fractional share of Common Stock multiplied by the closing price per share of the Common Stock on the last trading day
immediately preceding the expiration date of the Exchange Offer. The Exchange Offer is being made on an all-or-none basis, for
all 1,284,730 shares of Series B Preferred Stock outstanding and has an expiration date of May 30, 2018. Assuming all currently
outstanding shares of Series B Preferred Stock are tendered for exchange and not validly withdrawn, the Company would issue an
amount of its shares of Common Stock not to exceed 135,000. The Company owns 100% of the voting capital stock of M&#38;EC. If the
Exchange Offer is consummated, holders of the M&#38;EC Series B Preferred Stock would forfeit all rights of a holder of Series
B Preferred Shares, including the right to receive quarterly cash dividends, and the rights to the cumulative accrued and unpaid
dividends with M&#38;EC Series B Preferred Stock in the amount of approximately $1,011,000 as of April 1, 2018. M&#38;EC Board
has never declared dividends on the Series B Preferred Stock and our credit facility prohibits the payment of cash dividends without
the lender&#8217;s consent.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The shares of Company common stock to be issued
in exchange for shares of M&#38;EC&#8217;s Series B Preferred Stock will be issued pursuant to an exemption from registration under
the Securities Act of 1933, as amended, and, as a result, will be considered restricted securities that have restrictions on transferability.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">This discussion as to an exchange offer does
not constitute an offer or an invitation by the Company to participate in the exchange offer in any manner.</p><span></span>
</td>
</tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 855<br> -URI http://asc.fasb.org/topic&amp;trid=2122774<br></p></div>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies (Policies)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2018</div></th></tr>
<tr class="re">
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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_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock', window );">Recently Adopted Accounting Standards</a></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>Recently Adopted Accounting Standards</b></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In May 2014, the Financial Accounting Standards
Board (&#8220;FASB&#8221;) issued Accounting Standards Update (&#8220;ASU&#8221;) No. 2014-09, &#8220;Revenue from Contracts with
Customers&#8221; followed by a series of related accounting standard updates (collectively referred to as &#8220;Topic 606&#8221;),
which superseded nearly all existing revenue recognition guidance. Topic 606 provides a single, comprehensive revenue recognition
model for all contracts with customers. Under the new standard, a five-step process is utilized in order to determine revenue recognition,
depicting the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in
exchange for those goods or services. Topic 606 also requires additional disclosure surrounding the nature, amount, timing and
uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments
and assets recognized from costs incurred to obtain or fulfill a contract. Topic 606 is effective for annual reporting periods
beginning after December 15, 2017 (including interim reporting periods within those periods). The new standard permits two implementation
approaches: the full retrospective method, in which case the standard would be applied to each prior reporting period presented
and the cumulative effect of applying the standard would be recognized at the earliest period shown, or the modified retrospective
method, in which case the cumulative effect of applying the standard would be recognized at the date of initial application. The
Company adopted Topic 606 effective January 1, 2018 under the modified retrospective approach to all contracts as of date of adoption.
The Company recognized the cumulative effect of initially adopting Topic 606 as an increase of approximately $317,000 to the opening
balance of accumulated deficit at January 1, 2018. The adoption of Topic 606 did not result in significant changes to our revenue
recognition model within our Treatment and Services Segments. The cumulative impact to the opening balance of accumulated deficit
at January 1, 2018 was primarily driven by changes to the timing of revenue recognition in certain immaterial waste streams within
our Treatment Segment. See &#8220;Note 3 &#8211; Revenue&#8221; for additional disclosures related to our revenues under the new
standard. The comparative previous period information continues to be reported under the accounting standards in effect for that
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The cumulative effect of the changes made to
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In August 2016,
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(a consensus of the Emerging Issues Task Force),&#8221; which aims to eliminate diversity in practice in how certain cash receipts
and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other
Topics. Subsequently, in November 2016, the FASB issued ASU 2016-18, &#8220;Statement of Cash Flows (Topic 230), Restricted Cash,
a consensus of the FASB Emerging Issues Task Force,&#8221; which clarifies the guidance on the cash flow classification and presentation
of changes in restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash or restricted
cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total
amounts shown on the statement of cash flow. ASU 2016-15 and ASU 2016-18 are effective for annual reporting periods, and interim
periods therein, beginning after December 15, 2017. The adoption of these ASUs by the Company effective January 1, 2018 did not
have a material impact on </font>the Company&#8217;s financial position, results of operations, or cash flows.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In October 2016,
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which eliminates the existing exception in U.S. GAAP prohibiting the recognition of the income tax consequences for intra-entity
asset transfers. Under ASU 2016-16, entities will be required to recognize the income tax consequences of intra-entity asset transfers
other than inventory when the transfer occurs. ASU 2016-16 is effective on a modified retrospective basis for fiscal years, and
for interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. The adoption of
ASU 2016-16 by the Company effective January 1, 2018 did not have a material impact on </font>the Company&#8217;s financial position,
results of operations, or cash flows.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In January 2017,
the FASB issued ASU No. 2017-01, &#8220;Business Combinations (Topic 805) &#8211; Clarifying the Definition of a Business.&#8221;
ASU 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether
transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects
many areas of accounting including acquisition, disposals, goodwill and consolidation. This standard is effective for fiscal years
beginning after December 15, 2017, including interim periods within that reporting period. The adoption of ASU 2017-01 by the Company
effective January 1, 2018 did not have a material impact on </font>the Company&#8217;s financial position, results of operations,
or cash flows.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In May 2017,
the FASB issued ASU 2017-09, &#8220;Compensation &#8211; Stock Compensation (Topic 718): Scope of Modification Accounting.&#8221;
This ASU provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to
apply modification accounting in Topic 718. ASU 2017-09 is effective for fiscal years beginning after December 15, 2017 and interim
periods within those fiscal years, and early adoption is permitted, including in an interim period. ASU 2017-09 is to be applied
on a prospective basis to an award modified on or after the adoption date. The adoption of ASU 2017-01 by the Company effective
January 1, 2018 did not have a material impact on </font>the Company&#8217;s financial position, results of operations, or cash
flows.</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_PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock', window );">Recently Issued Accounting Standards - Not Yet Adopted</a></td>
<td class="text"><p style="margin: 0pt"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>Recently Issued Accounting Standards &#8211;
Not Yet Adopted</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">In February 2016, the FASB
issued ASU No. 2016-02, &#8220;Leases (Topic 842).&#8221; Under ASU 2016-02, an entity will be required to recognize right-of-use
assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. ASU 2016-02 offers specific
accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative
and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing
and uncertainty of cash flows arising from leases. For public companies, ASU 2016-02 is effective for annual reporting periods
beginning after December 15, 2018, including interim periods within that reporting period, and requires a modified retrospective
adoption, with early adoption permitted. This ASU is effective January 1, 2019 for the Company. The Company is still evaluating
the potential impact of adopting this guidance on our financial statements.</p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><font style="color: #252525">In February 2018,
FASB issued ASU 2018-02<i>, &#8220;</i></font><font style="color: #222222">Income Statement&#8212;Reporting Comprehensive Income
(Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income&#8221;. </font><font style="color: #252525">This
ASU allows for the reclassification of certain income tax effects related to the Tax Cuts and Jobs Act between &#8220;Accumulated
other comprehensive income&#8221; and &#8220;Retained earnings.&#8221; This ASU relates to the requirement that adjustments to
deferred tax liabilities and assets related to a change in tax laws or rates to be included in &#8220;Income from continuing operations&#8221;,
even in situations where the related items were originally recognized in &#8220;Other comprehensive income&#8221; (rather than
in &#8220;Income from continuing operations&#8221;). ASU 2018-02 is effective for all entities for fiscal years beginning after
December 15, 2018, and interim periods within those fiscal years, with early adoption permitted. Adoption of this ASU is to be
applied either in the period of adoption or retrospectively to each period in which the effect of the change in the tax laws or
rates were recognized. The Company is currently assessing the impact that this standard will have on its financial statements.</font></p><span></span>
</td>
</tr>
</table>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for new accounting pronouncements that has been issued, but not yet adopted [Policy Text Block].</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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>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>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6610710240">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2018</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_ScheduleOfChangeInAccountingEstimateTextBlock', window );">Schedule of Cumulative Effect Changes in Consolidated Balance Sheet</a></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In accordance with Topic 606 requirements,
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525"><b>&#160;</b></p>

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
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</table>


<p style="margin: 0pt"></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_ContractWithCustomerAssetAndLiabilityTableTextBlock', window );">Schedule of Contract Assets and Liabilities</a></td>
<td class="text"><p style="margin: 0pt"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">The following table represents
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; color: #252525">&#160;</p>

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<tr style="vertical-align: bottom">
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    <td>&#160;</td>
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    <td>&#160;</td>
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<p style="margin: 0pt"></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_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock', window );">Schedule of Finite-Lived Intangible Assets, Future Amortization Expense</a></td>
<td class="text"><p style="margin: 0pt"></p>

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

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    <td>&#160;</td>
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<p style="margin: 0pt"></p><span></span>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6786503536">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Capital Stock, Stock Plans and Stock Based Compensation (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2018</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_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract', window );"><strong>Disclosure of Compensation Related Costs, Share-based Payments [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_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock', window );">Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions</a></td>
<td class="text"><p style="margin: 0pt"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The fair value of the options granted on January
18, 2018 and January 13, 2017 as discussed above and the related assumptions used in the Black-Scholes option model used to value
the options granted were as follows:</p>

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

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<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom">
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<tr style="vertical-align: top">
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    <td style="text-align: justify"><font style="font-size: 10pt">The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.</font></td></tr>
<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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<p style="margin: 0pt"></p><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_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock', window );">Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs</a></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The following table summarizes stock-based
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

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</table>


<p style="margin: 0pt"></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_ScheduleOfStockOptionsRollForwardTableTextBlock', window );">Schedule of Stock Options Roll Forward</a></td>
<td class="text"><p style="margin: 0pt"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company&#8217;s Plans consist of the 2010
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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    <td>&#160;</td>
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    <td style="padding-bottom: 1.5pt">&#160;</td>
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    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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<tr style="vertical-align: bottom; background-color: white">
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
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    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
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<font style="font-size: 10pt">Price</font></td>
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    <td style="padding-bottom: 1.5pt">&#160;</td>
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<font style="font-size: 10pt">(years)</font></td>
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<font style="font-size: 10pt">Value <sup>(3)</sup></font></td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td style="width: 1%">&#160;</td>
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    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
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    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 12%; text-align: right">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 12%; text-align: right">&#160;</td>
    <td style="width: 1%">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: white">
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    <td>&#160;</td>
    <td>&#160;</td>
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    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
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    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right">&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right">&#160;</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right"><font style="font-size: 10pt">&#9472;</font></td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right"><font style="font-size: 10pt">&#9472;</font></td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right">&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td>
    <td style="text-align: right">&#160;</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: white">
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    <td style="padding-bottom: 1.5pt">&#160;</td>
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    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt; text-align: right">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="padding-bottom: 1.5pt; text-align: right">&#160;</td>
    <td style="padding-bottom: 1.5pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: black 2.25pt double; text-align: right">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: white">
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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</table>


<p style="margin: 0pt"></p><span></span>
</td>
</tr>
</table>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>(Income) Loss Per Share (Tables)<br></strong></div></th>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6792029904">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Long-Term Debt (Tables)<br></strong></div></th>
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    <td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="width: 24px; text-align: justify"><font style="font-size: 10pt"><sup>(1)</sup></font></td>
    <td style="text-align: justify"><font style="font-size: 10pt">Our revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</font></td></tr>
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    <td style="text-align: justify"><font style="font-size: 10pt"><sup>(2)</sup></font></td>
    <td style="text-align: justify"><font style="font-size: 10pt">Net of debt issuance costs of ($107,000) and ($115,000) at March 31, 2018 and December 31, 2017, respectively.</font></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.</p></div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6803548416">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>East Tennessee Materials and Energy Corporation (&#8220;M&amp;EC&#8221;) (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The following reflects changes to the closure
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 30<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=6393242&amp;loc=d3e13201-110859<br></p></div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6803509056">
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&#160;</p>

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<p style="margin: 0pt"></p><span></span>
</td>
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<div style="display: none;">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of information related to a disposal group for the balance sheet. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.</p></div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6606840240">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Operating Segment (Tables)<br></strong></div></th>
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</tr>
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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_SegmentReportingAbstract', window );"><strong>Segment Reporting [Abstract]</strong></a></td>
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<p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify">The table below presents certain financial
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<p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 11pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
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<p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0">&#160;</p>

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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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    <td style="text-align: right; line-height: 107%"><font style="font: 10pt Times New Roman, Times, Serif">&#8212;</font></td>
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    <td style="line-height: 107%">&#160;</td>
    <td style="line-height: 107%">&#160;</td>
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    <td style="line-height: 107%">&#160;</td>
    <td style="line-height: 107%">&#160;</td>
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    <td style="text-align: right; line-height: 107%"><font style="font: 10pt Times New Roman, Times, Serif">&#8212;</font></td>
    <td style="line-height: 107%">&#160;</td>
    <td style="line-height: 107%">&#160;</td>
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    <td style="line-height: 107%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: white">
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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<p style="font: 10pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>&#160;</b></p>

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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -URI http://asc.fasb.org/extlink&amp;oid=68060357&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=68060357&amp;loc=d3e8813-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 21<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=68060357&amp;loc=d3e8721-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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=35741047&amp;loc=d3e13816-109267<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<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=68060357&amp;loc=d3e8736-108599<br></p></div>
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<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies (Details Narrative)<br> $ in Thousands</strong></div></th>
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<div>Jan. 02, 2018 </div>
<div>USD ($)</div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6813353984">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies - Schedule of Cumulative Effect Changes in Consolidated Balance Sheet (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Jan. 02, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</div></th>
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<td class="nump">$ 1,616<span></span>
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<td class="nump">$ 2,071<span></span>
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<td class="nump">5,083<span></span>
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<td class="nump">4,311<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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<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>The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b).Q1(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6935-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 13.A.4(a).Q1)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b).Q2)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(c).Q3)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br></p></div>
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<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://www.xbrl.org/2003/role/presentationRef<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=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=27012166&amp;loc=d3e187085-122770<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
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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>
<td style="white-space:nowrap;">us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201409Member</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>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>47
<FILENAME>R36.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6813611392">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies - Schedule of Impact of Adoption of Topic 606 (Details) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Jan. 02, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalTransportationAccrual', window );">Disposal/transportation accrual</a></td>
<td class="nump">$ 1,478<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,616<span></span>
</td>
<td class="nump">$ 2,071<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredRevenueCurrent', window );">Deferred revenue</a></td>
<td class="nump">4,620<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">5,083<span></span>
</td>
<td class="nump">4,311<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(78,074)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (78,210)<span></span>
</td>
<td class="num">$ (77,893)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SalesRevenueNet', window );">Revenues</a></td>
<td class="nump">12,658<span></span>
</td>
<td class="nump">$ 12,707<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_CostOfGoodsSold', window );">Cost of goods sold</a></td>
<td class="nump">9,337<span></span>
</td>
<td class="nump">9,988<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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Income (loss) from continuing operations, net of taxes</a></td>
<td class="nump">253<span></span>
</td>
<td class="num">(675)<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 (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="nump">$ 136<span></span>
</td>
<td class="num">$ (727)<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_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare', window );">Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations</a></td>
<td class="nump">$ 0.02<span></span>
</td>
<td class="num">$ (0.05)<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_EarningsPerShareBasicAndDiluted', window );">Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="num">$ (0.06)<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 );">Net income</a></td>
<td class="nump">$ 96<span></span>
</td>
<td class="num">$ (806)<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_ComprehensiveIncomeNetOfTax', window );">Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders</a></td>
<td class="nump">128<span></span>
</td>
<td class="num">$ (715)<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_NewAccountingPronouncementEarlyAdoptionAxis=us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember', window );">Effect of Change Higher/(Lower) [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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalTransportationAccrual', window );">Disposal/transportation accrual</a></td>
<td class="num">(525)<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_DeferredRevenueCurrent', window );">Deferred revenue</a></td>
<td class="num">(887)<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_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(46)<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_SalesRevenueNet', window );">Revenues</a></td>
<td class="num">(115)<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_CostOfGoodsSold', window );">Cost of goods sold</a></td>
<td class="num">(69)<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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Income (loss) from continuing operations, net of taxes</a></td>
<td class="num">(46)<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 (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="num">$ (46)<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_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare', window );">Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations</a></td>
<td class="text"> <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_EarningsPerShareBasicAndDiluted', window );">Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share</a></td>
<td class="text"> <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 );">Net income</a></td>
<td class="num">$ (46)<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_ComprehensiveIncomeNetOfTax', window );">Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders</a></td>
<td class="num">(46)<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_StatementScenarioAxis=PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember', window );">Balances Before Adoption of Topic 606 [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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalTransportationAccrual', window );">Disposal/transportation accrual</a></td>
<td class="nump">2,003<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_DeferredRevenueCurrent', window );">Deferred revenue</a></td>
<td class="nump">5,507<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_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(78,028)<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_SalesRevenueNet', window );">Revenues</a></td>
<td class="nump">12,773<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_CostOfGoodsSold', window );">Cost of goods sold</a></td>
<td class="nump">9,406<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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Income (loss) from continuing operations, net of taxes</a></td>
<td class="nump">299<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 (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="nump">$ 182<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_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare', window );">Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations</a></td>
<td class="nump">$ 0.02<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_EarningsPerShareBasicAndDiluted', window );">Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share</a></td>
<td class="nump">$ 0.01<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 );">Net income</a></td>
<td class="nump">$ 142<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_ComprehensiveIncomeNetOfTax', window );">Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders</a></td>
<td class="nump">$ 174<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_PESI_DisposalTransportationAccrual">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value of the obligation (known or estimated) arising from requirements to perform disposal/transportation activities, payable in twelve months or in the next operating cycle if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalTransportationAccrual</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=84228862&amp;loc=d3e557-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_CostOfGoodsSold">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total costs related to goods produced and sold 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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostOfGoodsSold</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_DeferredRevenueCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b).Q1(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6935-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 13.A.4(a).Q1)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b).Q2)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(c).Q3)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredRevenueCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or 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>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_EarningsPerShareBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted 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_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_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://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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_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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591552-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=84234705&amp;loc=SL4591551-111686<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=84161450&amp;loc=SL4573702-111684<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_ProfitLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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://www.xbrl.org/2003/role/presentationRef<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=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=27012166&amp;loc=d3e187085-122770<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SalesRevenueNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SalesRevenueNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_NewAccountingPronouncementEarlyAdoptionAxis=us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_NewAccountingPronouncementEarlyAdoptionAxis=us-gaap_NewAccountingPronouncementEarlyAdoptionEffectMember</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_StatementScenarioAxis=PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementScenarioAxis=PESI_BalancesBeforeAdoptionOfTopicSixHundredAndSixMember</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>48
<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) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6803467440">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenue (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue from Contract with Customer [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_SignificantPaymentTerms', window );">Significant payment terms</a></td>
<td class="text">30 days<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">$ 3,811<span></span>
</td>
<td class="nump">$ 2,977<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_SignificantPaymentTerms">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents general payment term from invoicing date provided to customers.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_SignificantPaymentTerms</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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/presentationRef<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=82913847&amp;loc=SL49130549-203045<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 270<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=84173487&amp;loc=SL51747714-108306<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityRevenueRecognized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>49
<FILENAME>R38.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6814609696">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</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_Revenues', window );">Total</a></td>
<td class="nump">$ 12,658<span></span>
</td>
<td class="nump">$ 12,707<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember', window );">Fixed Price [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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 );">Total</a></td>
<td class="nump">9,049<span></span>
</td>
<td class="nump">10,132<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_CostReimbursementMember', window );">Cost Reimbursement [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_Revenues', window );">Total</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_TimeandMaterialsMember', window );">Time and Materials [Member]</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_Revenues', window );">Total</a></td>
<td class="nump">3,609<span></span>
</td>
<td class="nump">2,575<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember', window );">Treatment [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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 );">Total</a></td>
<td class="nump">8,959<span></span>
</td>
<td class="nump">10,034<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember', window );">Treatment [Member] | Fixed Price [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_Revenues', window );">Total</a></td>
<td class="nump">8,959<span></span>
</td>
<td class="nump">10,034<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember', window );">Treatment [Member] | Cost Reimbursement [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_Revenues', window );">Total</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember', window );">Treatment [Member] | Time and Materials [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_ServicesMember', window );">Services [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">3,699<span></span>
</td>
<td class="nump">2,673<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_ServicesMember', window );">Services [Member] | Fixed Price [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_Revenues', window );">Total</a></td>
<td class="nump">90<span></span>
</td>
<td class="nump">98<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_ServicesMember', window );">Services [Member] | Cost Reimbursement [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_Revenues', window );">Total</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_ServicesMember', window );">Services [Member] | Time and Materials [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">3,609<span></span>
</td>
<td class="nump">2,575<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_MajorCustomersAxis=PESI_DomesticGovernmentMember', window );">Domestic Government [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">9,654<span></span>
</td>
<td class="nump">9,439<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_MajorCustomersAxis=PESI_DomesticGovernmentMember', window );">Domestic Government [Member] | Treatment [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">6,536<span></span>
</td>
<td class="nump">7,371<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_MajorCustomersAxis=PESI_DomesticGovernmentMember', window );">Domestic Government [Member] | Services [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">3,118<span></span>
</td>
<td class="nump">2,068<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_MajorCustomersAxis=PESI_DomesticCommercialMember', window );">Domestic Commercial [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">2,825<span></span>
</td>
<td class="nump">3,182<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_MajorCustomersAxis=PESI_DomesticCommercialMember', window );">Domestic Commercial [Member] | Treatment [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">2,423<span></span>
</td>
<td class="nump">2,663<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_MajorCustomersAxis=PESI_DomesticCommercialMember', window );">Domestic Commercial [Member] | Services [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">402<span></span>
</td>
<td class="nump">519<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_MajorCustomersAxis=PESI_ForeignGovernmentMember', window );">Foreign Government [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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 );">Total</a></td>
<td class="nump">153<span></span>
</td>
<td class="nump">65<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_MajorCustomersAxis=PESI_ForeignGovernmentMember', window );">Foreign Government [Member] | Treatment [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MajorCustomersAxis=PESI_ForeignGovernmentMember', window );">Foreign Government [Member] | Services [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">153<span></span>
</td>
<td class="nump">65<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_MajorCustomersAxis=PESI_ForeignCommercialMember', window );">Foreign Commercial [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">26<span></span>
</td>
<td class="nump">21<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_MajorCustomersAxis=PESI_ForeignCommercialMember', window );">Foreign Commercial [Member] | Treatment [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MajorCustomersAxis=PESI_ForeignCommercialMember', window );">Foreign Commercial [Member] | Services [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Total</a></td>
<td class="nump">$ 26<span></span>
</td>
<td class="nump">$ 21<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_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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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_us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_CostReimbursementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_CostReimbursementMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_TimeandMaterialsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_TimeandMaterialsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementBusinessSegmentsAxis=PESI_ServicesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=PESI_ServicesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MajorCustomersAxis=PESI_DomesticGovernmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MajorCustomersAxis=PESI_DomesticGovernmentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MajorCustomersAxis=PESI_DomesticCommercialMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MajorCustomersAxis=PESI_DomesticCommercialMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MajorCustomersAxis=PESI_ForeignGovernmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MajorCustomersAxis=PESI_ForeignGovernmentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MajorCustomersAxis=PESI_ForeignCommercialMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MajorCustomersAxis=PESI_ForeignCommercialMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>50
<FILENAME>R39.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;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6813720144">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenue - Schedule of Contract Assets and Liabilities (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Jan. 02, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</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_AccountsReceivableNet', window );">Account receivables, net of allowance</a></td>
<td class="nump">$ 4,762<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_UnbilledReceivablesCurrent', window );">Unbilled receivables - current</a></td>
<td class="nump">4,574<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_UnbilledReceivablesNonCurrent', window );">Unbilled receivables - non-current</a></td>
<td class="nump">92<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_DeferredRevenueCurrent', window );">Deferred revenue</a></td>
<td class="nump">4,620<span></span>
</td>
<td class="nump">$ 5,083<span></span>
</td>
<td class="nump">$ 4,311<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardDateAxis=PESI_JanuaryOneTwoThousandEighteenMember', window );">January 1, 2018 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsReceivableNet', window );">Account receivables, net of allowance</a></td>
<td class="nump">7,940<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_UnbilledReceivablesCurrent', window );">Unbilled receivables - current</a></td>
<td class="nump">4,574<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_UnbilledReceivablesNonCurrent', window );">Unbilled receivables - non-current</a></td>
<td class="nump">184<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_DeferredRevenueCurrent', window );">Deferred revenue</a></td>
<td class="nump">5,083<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_AwardDateAxis=PESI_YearToDateChangesMember', window );">Year-to-date Change [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<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_AccountsReceivableNet', window );">Account receivables, net of allowance</a></td>
<td class="num">(3,178)<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_UnbilledReceivablesCurrent', window );">Unbilled receivables - current</a></td>
<td class="nump">27<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_UnbilledReceivablesNonCurrent', window );">Unbilled receivables - non-current</a></td>
<td class="num">(92)<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_DeferredRevenueCurrent', window );">Deferred revenue</a></td>
<td class="num">$ (463)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_ChangesInAccountReceivablesNetOfAllowancePercentage', window );">Changes in Account receivables, net of allowance, percentage</a></td>
<td class="num">(40.00%)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_ChangeInUnbilledReceivablesCurrentPercentage', window );">Changes in Unbilled receivables - current, percentage</a></td>
<td class="nump">0.60%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_ChangesInUnbilledReceivablesNoncurrentPercentage', window );">Changes in Unbilled receivables - non-current, percentage</a></td>
<td class="num">(50.00%)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_ChangesInDeferredRevenuePercentage', window );">Changes in Deferred revenue, percentage</a></td>
<td class="num">(9.10%)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_ChangeInUnbilledReceivablesCurrentPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of change in unbilled receivables - current percentage.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_ChangeInUnbilledReceivablesCurrentPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_PESI_ChangesInAccountReceivablesNetOfAllowancePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of change in account receivables, net of allowance.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_ChangesInAccountReceivablesNetOfAllowancePercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_PESI_ChangesInDeferredRevenuePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of change in deferred revenue.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_ChangesInDeferredRevenuePercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_PESI_ChangesInUnbilledReceivablesNoncurrentPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of change in unbilled receivables - non-current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_ChangesInUnbilledReceivablesNoncurrentPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_PESI_UnbilledReceivablesNonCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Unbilled receivables - non-current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_UnbilledReceivablesNonCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsReceivableNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.</p></div>
<a 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 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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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(9))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&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_AccountsReceivableNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredRevenueCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b).Q1(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6935-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 13.A.4(a).Q1)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b).Q2)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 13.A.3(c).Q3)<br> -URI http://asc.fasb.org/extlink&amp;oid=65893310&amp;loc=d3e214044-122780<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredRevenueCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UnbilledReceivablesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UnbilledReceivablesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardDateAxis=PESI_JanuaryOneTwoThousandEighteenMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardDateAxis=PESI_JanuaryOneTwoThousandEighteenMember</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_AwardDateAxis=PESI_YearToDateChangesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardDateAxis=PESI_YearToDateChangesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6803438272">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Intangible Assets (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract', window );"><strong>Goodwill and Intangible Assets Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentForAmortization', window );">Amortization expense of intangible asset</a></td>
<td class="nump">$ 84<span></span>
</td>
<td class="nump">$ 94<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentForAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentForAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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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_GoodwillAndIntangibleAssetsDisclosureAbstract</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>duration</td>
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<DOCUMENT>
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<html>
<head>
<title></title>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6801513536">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</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_FiniteLivedIntangibleAssetsGross', window );">Gross Carrying Amount</a></td>
<td class="nump">$ 4,998<span></span>
</td>
<td class="nump">$ 4,982<span></span>
</td>
</tr>
<tr class="ro">
<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</a></td>
<td class="num">(3,517)<span></span>
</td>
<td class="num">(3,433)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsNet', window );">Finite-Lived Intangible Assets, Net</a></td>
<td class="nump">1,481<span></span>
</td>
<td class="nump">1,549<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember', window );">Patent [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_FiniteLivedIntangibleAssetsGross', window );">Gross Carrying Amount</a></td>
<td class="nump">673<span></span>
</td>
<td class="nump">657<span></span>
</td>
</tr>
<tr class="ro">
<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</a></td>
<td class="num">(314)<span></span>
</td>
<td class="num">(306)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsNet', window );">Finite-Lived Intangible Assets, Net</a></td>
<td class="nump">$ 359<span></span>
</td>
<td class="nump">351<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember', window );">Patent [Member] | Minimum [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_FiniteLivedIntangibleAssetUsefulLife', window );">Finite-Lived Intangible Asset, Useful Life</a></td>
<td class="text">1 year<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=us-gaap_PatentsMember', window );">Patent [Member] | Maximum [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_FiniteLivedIntangibleAssetUsefulLife', window );">Finite-Lived Intangible Asset, Useful Life</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=PESI_SoftwareMember', window );">Software [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_FiniteLivedIntangibleAssetUsefulLife', window );">Finite-Lived Intangible Asset, Useful Life</a></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_FiniteLivedIntangibleAssetsGross', window );">Gross Carrying Amount</a></td>
<td class="nump">$ 410<span></span>
</td>
<td class="nump">410<span></span>
</td>
</tr>
<tr class="re">
<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</a></td>
<td class="num">(400)<span></span>
</td>
<td class="num">(398)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsNet', window );">Finite-Lived Intangible Assets, Net</a></td>
<td class="nump">$ 10<span></span>
</td>
<td class="nump">12<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember', window );">Customer Relationships [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetUsefulLife', window );">Finite-Lived Intangible Asset, Useful Life</a></td>
<td class="text">12 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsGross', window );">Gross Carrying Amount</a></td>
<td class="nump">$ 3,370<span></span>
</td>
<td class="nump">3,370<span></span>
</td>
</tr>
<tr class="ro">
<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</a></td>
<td class="num">(2,307)<span></span>
</td>
<td class="num">(2,246)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsNet', window );">Finite-Lived Intangible Assets, Net</a></td>
<td class="nump">$ 1,063<span></span>
</td>
<td class="nump">1,124<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=PESI_PermitsMember', window );">Permit [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_FiniteLivedIntangibleAssetUsefulLife', window );">Finite-Lived Intangible Asset, Useful Life</a></td>
<td class="text">10 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_FiniteLivedIntangibleAssetsGross', window );">Gross Carrying Amount</a></td>
<td class="nump">$ 545<span></span>
</td>
<td class="nump">545<span></span>
</td>
</tr>
<tr class="re">
<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</a></td>
<td class="num">(496)<span></span>
</td>
<td class="num">(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_FiniteLivedIntangibleAssetsNet', window );">Finite-Lived Intangible Assets, Net</a></td>
<td class="nump">$ 49<span></span>
</td>
<td class="nump">$ 62<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_FiniteLivedIntangibleAssetUsefulLife">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<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>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetUsefulLife</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:durationItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FiniteLivedIntangibleAssetsGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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_FiniteLivedIntangibleAssetsGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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_FiniteLivedIntangibleAssetsNet</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 );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RangeAxis=us-gaap_MinimumMember</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RangeAxis=us-gaap_MaximumMember</td>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=PESI_SoftwareMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=PESI_SoftwareMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=PESI_PermitsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=PESI_PermitsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>53
<FILENAME>R42.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6647891376">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) - Intangible Assets [Member]<br> $ in Thousands</strong></div></th>
<th class="th">
<div>Mar. 31, 2018 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear', window );">2018 (remaining)</a></td>
<td class="nump">$ 251<span></span>
</td>
</tr>
<tr class="ro">
<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 );">2019</a></td>
<td class="nump">254<span></span>
</td>
</tr>
<tr class="re">
<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 );">2020</a></td>
<td class="nump">218<span></span>
</td>
</tr>
<tr class="ro">
<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 );">2021</a></td>
<td class="nump">198<span></span>
</td>
</tr>
<tr class="re">
<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 );">2022</a></td>
<td class="nump">$ 173<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_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest 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://www.xbrl.org/2003/role/presentationRef<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_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest 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://www.xbrl.org/2003/role/presentationRef<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_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest 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://www.xbrl.org/2003/role/presentationRef<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_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest 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://www.xbrl.org/2003/role/presentationRef<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_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_FairValueByAssetClassAxis=us-gaap_FiniteLivedIntangibleAssetsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_FairValueByAssetClassAxis=us-gaap_FiniteLivedIntangibleAssetsMember</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>54
<FILENAME>R43.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6813030976">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Capital Stock, Stock Plans and Stock-Based Compensation (Details Narrative) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="2"></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jan. 18, 2018</div></th>
<th class="th"><div>Jan. 13, 2017</div></th>
<th class="th"><div>Jan. 13, 2017</div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Non-qualified stock options, shares, granted</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">6,000<span></span>
</td>
<td class="nump">6,000<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_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice', window );">Stock options, grants in period, exercise price</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">$ 4.05<span></span>
</td>
<td class="nump">$ 3.79<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized', window );">Unrecognized compensation cost related to unvested options</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">$ 547<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear', window );">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, remainder of fiscal year</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">148<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo', window );">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year two</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">126<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree', window );">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year three</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">114<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour', window );">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year four</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">114<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive', window );">Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year five</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">45<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Allocated share-based compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">46<span></span>
</td>
<td class="nump">$ 23<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember', window );">Employee Stock Options [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Allocated share-based compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">10<span></span>
</td>
<td class="nump">$ 11<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=PESI_TwoThousandThreeOutsideDirectorsStockPlanMember', window );">2003 Outside Directors Stock Plan [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<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_AllocatedShareBasedCompensationExpense', window );">Allocated share-based compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 64<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_StockIssuedDuringPeriodSharesIssuedForServices', window );">Stock issued during period, shares, issued for services</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">16,074<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=PESI_TwoThousandThreeOutsideDirectorsStockPlanMember', window );">2003 Outside Directors Stock Plan [Member] | New Director [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Non-qualified stock options, shares, granted</a></td>
<td class="nump">6,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">6,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Stock options granted contractual term</a></td>
<td class="text">10 years<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>
<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 );">Stock options, grants in period, exercise price</a></td>
<td class="nump">$ 4.05<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3.79<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_PlanNameAxis=PESI_TwoThousandThreeOutsideDirectorsStockPlanMember', window );">2003 Outside Directors Stock Plan [Member] | New Director [Member] | Employee Stock Options [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Stock options granted vesting period</a></td>
<td class="text">6 months<span></span>
</td>
<td class="text">6 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, remainder of fiscal year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsRemainderOfFiscalYear</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year five.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFive</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year four.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearFour</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year three.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearThree</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year two.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_EmployeeAndDirectorServiceSharebasedCompensationNonvestedAwardsCompensationNotYetRecognizedStockOptionsYearTwo</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllocatedShareBasedCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.F)<br> -URI http://asc.fasb.org/extlink&amp;oid=27013229&amp;loc=d3e301413-122809<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5047-113901<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllocatedShareBasedCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Unrecognized cost of unvested share-based compensation awards.</p></div>
<a 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 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=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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_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>num: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_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 share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5070-113901<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=27013229&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_StockIssuedDuringPeriodSharesIssuedForServices">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesIssuedForServices</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=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_PlanNameAxis=PESI_TwoThousandThreeOutsideDirectorsStockPlanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PlanNameAxis=PESI_TwoThousandThreeOutsideDirectorsStockPlanMember</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_TitleOfIndividualAxis=us-gaap_DirectorMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TitleOfIndividualAxis=us-gaap_DirectorMember</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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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>55
<FILENAME>R44.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6800513184">
<tr>
<th class="tl" colspan="2" rowspan="1"><div style="width: 200px;"><strong>Capital Stock, Stock Plans and Stock-based Compensation - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) - Outside Director Stock Options Granted [Member] - $ / shares<br></strong></div></th>
<th class="th"><div>Jan. 18, 2018</div></th>
<th class="th"><div>Jan. 13, 2017</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice', window );">Weighted-average fair value per shares</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 2.55<span></span>
</td>
<td class="nump">$ 2.63<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate', window );">Risk -free interest rate</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">2.62%<span></span>
</td>
<td class="nump">2.40%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Expected volatility of stock</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[2]</sup></td>
<td class="nump">57.29%<span></span>
</td>
<td class="nump">56.32%<span></span>
</td>
</tr>
<tr class="ro">
<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 );">Dividend yield</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0.00%<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
</tr>
<tr class="re">
<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 option life</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="text">10 years<span></span>
</td>
<td class="text">10 years<span></span>
</td>
</tr>
<tr><td colspan="4"></td></tr>
<tr><td colspan="4"><table class="outerFootnotes" width="100%">
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">The expected volatility is based on historical volatility from our traded Common Stock over the expected term of the option.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[3]</td>
<td style="vertical-align: top;" valign="top">The expected option life is based on historical exercises and post-vesting data.</td>
</tr>
</table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_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://www.xbrl.org/2003/role/presentationRef<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=96867065&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>num: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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 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>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 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>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(iv)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_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 share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5070-113901<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=27013229&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=PESI_OutsideDirectorStockOptionsGrantedMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=PESI_OutsideDirectorStockOptionsGrantedMember</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>56
<FILENAME>R45.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6786692432">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Capital Stock, Stock Plans and Stock-based Compensation - Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Allocated stock-based compensation</a></td>
<td class="nump">$ 46<span></span>
</td>
<td class="nump">$ 23<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember', window );">Employee Stock Options [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Allocated stock-based compensation</a></td>
<td class="nump">10<span></span>
</td>
<td class="nump">11<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=PESI_DirectorStockOptionsMember', window );">Director Stock Options [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Allocated stock-based compensation</a></td>
<td class="nump">$ 36<span></span>
</td>
<td class="nump">$ 12<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllocatedShareBasedCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.F)<br> -URI http://asc.fasb.org/extlink&amp;oid=27013229&amp;loc=d3e301413-122809<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5047-113901<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllocatedShareBasedCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=PESI_DirectorStockOptionsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=PESI_DirectorStockOptionsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>57
<FILENAME>R46.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6801503184">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Capital Stock, Stock Plans, Warrants and Stock-based Compensation - Schedule of Stock Options Roll Forward (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="4">3 Months Ended</th>
</tr>
<tr>
<th class="th" colspan="2"><div>Mar. 31, 2018</div></th>
<th class="th" colspan="2"><div>Mar. 31, 2017</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_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract', window );"><strong>Disclosure of Compensation Related Costs, Share-based Payments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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 );">Shares options outstanding beginning</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">624,800<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">247,200<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<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 );">Shares options granted</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">6,000<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">6,000<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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 );">Shares options exercised</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text"> <span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod', window );">Shares options forfeited/expired</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="num">(30,000)<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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 );">Shares options outstanding ending</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">630,800<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">223,200<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[2]</sup></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber', window );">Shares options exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">191,467<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">163,867<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[2]</sup></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber', window );">Shares options vested and expected to be vested</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">630,800<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">223,200<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Weighted average exercise price options outstanding beginning</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 4.42<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">$ 6.69<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<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 );">Weighted average exercise price options granted</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">4.05<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">3.79<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice', window );">Weighted average exercise price options exercised</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text"> <span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice', window );">Weighted average exercise price options forfeited/expired</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">5.00<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Weighted average exercise price options outstanding ending</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">4.41<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">6.84<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[2]</sup></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice', window );">Weighted average exercise price options exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">6.13<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">7.87<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[2]</sup></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice', window );">Weighted average exercise price options vested and expected to be vested</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 4.41<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">$ 6.84<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2', window );">Weighted average remaining contractual term outstanding</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">5 years 3 months 19 days<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text">4 years 8 months 12 days<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[2]</sup></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1', window );">Weighted average remaining contractual term exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">4 years 8 months 12 days<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text">4 years 6 months<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[2]</sup></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1', window );">Weighted average remaining contractual term options vested and expected to be vested</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">5 years 3 months 19 days<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">4 years 8 months 12 days<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue', window );">Aggregate intrinsic value options outstanding</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="nump">$ 259,070<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">$ 4,380<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[2]</sup></td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1', window );">Aggregate intrinsic value options exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="nump">46,970<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">4,380<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[2]</sup></td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue', window );">Aggregate intrinsic value options vested and expected to be vested</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="nump">$ 259,070<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">$ 4,380<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
</tr>
<tr><td colspan="6"></td></tr>
<tr><td colspan="6"><table class="outerFootnotes" width="100%">
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">Options with exercise prices ranging from $2.79 to $13.35</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">Options with exercise prices ranging from $2.79 to $14.75</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[3]</td>
<td style="vertical-align: top;" valign="top">The intrinsic value of a stock option is the amount by which the market value of the underlying stock exceeds the exercise price of the option.</td>
</tr>
</table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(3)-(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average price of options that were either forfeited or expired.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(3)-(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Gross number of share options (or share units) granted during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of options outstanding, including both vested and non-vested options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5070-113901<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. 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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 fully vested and expected to vest options outstanding that can be converted into shares under option plan. 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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber</td>
</tr>
<tr>
<td style="padding-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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. 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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average price at which option holders acquired shares when converting their stock options into shares.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2</td>
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<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>
<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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents 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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of share options (or share units) exercised during the current period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=84159872&amp;loc=d3e21463-112644<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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=27012166&amp;loc=d3e187085-122770<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<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=96867065&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_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>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6794395808">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Capital Stock, Stock Plans, Warrants and Stock-based Compensation - Schedule of Stock Options Roll Forward (Details) (Parenthetical) - $ / shares<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</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_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract', window );"><strong>Disclosure of Compensation Related Costs, Share-based Payments [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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit', window );">Stock option exercise price per share lower limit</a></td>
<td class="nump">$ 2.79<span></span>
</td>
<td class="nump">$ 2.79<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit', window );">Stock option exercise price per share upper limit</a></td>
<td class="nump">$ 13.35<span></span>
</td>
<td class="nump">$ 14.75<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_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract</td>
</tr>
<tr>
<td style="padding-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>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (g)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (g)<br> -URI http://asc.fasb.org/extlink&amp;oid=96867065&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit</td>
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<td>us-gaap_</td>
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<td>num:perShareItemType</td>
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<td>na</td>
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<td>duration</td>
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<html>
<head>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6814604528">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>(Income) Loss Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareAbstract', window );"><strong>Earnings Per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperations', window );">Income (loss) from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="nump">$ 293,000<span></span>
</td>
<td class="num">$ (596,000)<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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity', window );">Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="num">(157,000)<span></span>
</td>
<td class="num">(131,000)<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_NetIncomeLoss', window );">Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="nump">$ 136,000<span></span>
</td>
<td class="num">$ (727,000)<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_EarningsPerShareBasic', window );">Basic Income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="num">$ (.06)<span></span>
</td>
</tr>
<tr class="ro">
<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 income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="num">$ (.06)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Basic weighted average shares outstanding</a></td>
<td class="nump">11,747,000<span></span>
</td>
<td class="nump">11,681,000<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_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements', window );">Add: dilutive effect of stock options</a></td>
<td class="nump">26,000<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_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted weighted average shares outstanding</a></td>
<td class="nump">11,773,000<span></span>
</td>
<td class="nump">11,681,000<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_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect include: Stock options</a></td>
<td class="nump">168,000<span></span>
</td>
<td class="nump">205,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=96948231&amp;loc=d3e4984-109258<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(19))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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=96947427&amp;loc=d3e1252-109256<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(21))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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>num: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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(19))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=96947427&amp;loc=d3e1252-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(21))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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>num: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_IncomeLossFromContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) from continuing operations attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6371337&amp;loc=d3e3550-109257<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.13)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 18<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4613673-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721675-107760<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721525-107759<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721523-107759<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e957-107759<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e1012-107759<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=d3e1361-107760<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28A<br> -URI http://asc.fasb.org/extlink&amp;oid=96947427&amp;loc=d3e1500-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a 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 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=98514028&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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_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/presentationRef<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=96947427&amp;loc=d3e1505-109256<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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/presentationRef<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=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=96947427&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;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807312608">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Long-term Debt (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Oct. 31, 2011</div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LettersOfCreditOutstandingAmount', window );">Letters of credit outstanding, amount</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,660,000<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_LongtermDebtTypeAxis=PESI_TermLoanMember', window );">Term Loan [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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 );">Long-term debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3,551,000<span></span>
</td>
<td class="nump">$ 3,847,000<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityAxis=PESI_PNCBankMember', window );">PNC Bank [Member] | Term Loan [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan', window );">Number of years used to determine monthly payment on term loan</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">7 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember', window );">Revised Loan Agreement [Member] | PNC Bank [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DebtInstrumentTerminationNotice', window );">Debt instrument, termination notice</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">90 days<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember', window );">Revised Loan Agreement [Member] | PNC Bank [Member] | On or Before March 23, 2017 [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations', window );">Debt instrument percentage of total financing to be paid upon early retirement of debt obligations</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1.00%<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_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember', window );">Revised Loan Agreement [Member] | PNC Bank [Member] | After March 23, 2017 But Prior to or on March 23, 2018 [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations', window );">Debt instrument percentage of total financing to be paid upon early retirement of debt obligations</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember', window );">Revised Loan Agreement [Member] | PNC Bank [Member] | After March 23, 2018 But Prior to or on March 23, 2019 [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations', window );">Debt instrument percentage of total financing to be paid upon early retirement of debt obligations</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0.25%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember', window );">Revised Loan Agreement [Member] | PNC Bank [Member] | After March 23, 2019 [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations', window );">Debt instrument percentage of total financing to be paid upon early retirement of debt obligations</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0.00%<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_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember', window );">Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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 );">Long-term debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 6,100,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentPeriodicPaymentPrincipal', window );">Debt instrument, periodic payment, principal</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 101,600<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember', window );">Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | Prime Rate [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Debt instrument, basis spread on variable rate</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">2.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember', window );">Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Debt instrument, basis spread on variable rate</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">3.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=PESI_AmendmentToTheRevisedLoanAgreementMember', window );">Amendment to the Revised Loan Agreement [Member] | PNC Bank [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_IndefiniteReductionOfBorrowingAvailability', window );">Indefinite reduction of borrowing availability</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,000,000<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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [Member] | PNC Bank [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity', window );">Line of credit facility, remaining borrowing capacity</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,823,000<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_LettersOfCreditOutstandingAmount', window );">Letters of credit outstanding, amount</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,660,000<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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [Member] | Revised Loan Agreement [Member] | PNC Bank [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentMaturityDate', window );">Debt maturity date</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">Mar. 24,  2021<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_LineOfCreditFacilityMaximumBorrowingCapacity', window );">Line of credit facility, maximum borrowing capacity</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 12,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [Member] | Revised Loan Agreement [Member] | PNC Bank [Member] | Prime Rate [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Debt instrument, basis spread on variable rate</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">2.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [Member] | Revised Loan Agreement [Member] | PNC Bank [Member] | London Interbank Offered Rate (LIBOR) [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Debt instrument, basis spread on variable rate</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">3.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr><td colspan="4"></td></tr>
<tr><td colspan="4"><table class="outerFootnotes" width="100%">
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">Net of debt issuance costs of ($107,000) and ($115,000) at March 31, 2018 and December 31, 2017, respectively.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">Our revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</td>
</tr>
</table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Upon early retirement of debt obligations, the percentage of total financing to be paid as a fee.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DebtInstrumentPercentageOfTotalFinacingToBePaidUponEarlyRetirementOfDebtObligations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DebtInstrumentTerminationNotice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 days' prior written notice upon payment in full of outstanding obligations to terminate agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DebtInstrumentTerminationNotice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_IndefiniteReductionOfBorrowingAvailability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indefinite reduction of borrowing availability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_IndefiniteReductionOfBorrowingAvailability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 years used to determine monthly payment on term loan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_NumberOfYearsUsedToDetermineMonthlyPaymentOnTermLoan</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage points added to the reference rate to compute the variable rate on the debt instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentBasisSpreadOnVariableRate1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_DebtInstrumentMaturityDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_DebtInstrumentMaturityDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentPeriodicPaymentPrincipal">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 applied to principal.</p></div>
<a 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 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=6877327&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_DebtInstrumentPeriodicPaymentPrincipal</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LettersOfCreditOutstandingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LettersOfCreditOutstandingAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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/presentationRef<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=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6876686&amp;loc=d3e534808-122878<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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=PESI_TermLoanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=PESI_TermLoanMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LineOfCreditFacilityAxis=PESI_PNCBankMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityAxis=PESI_PNCBankMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementScenarioAxis=PESI_OnOrBeforeMarch232017Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementScenarioAxis=PESI_OnOrBeforeMarch232017Member</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_StatementScenarioAxis=PESI_AfterMarch232017ButPriorToOrOnMarch232018Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementScenarioAxis=PESI_AfterMarch232017ButPriorToOrOnMarch232018Member</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_StatementScenarioAxis=PESI_AfterMarch232018ButPriorToOrOnMarch232019Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementScenarioAxis=PESI_AfterMarch232018ButPriorToOrOnMarch232019Member</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_StatementScenarioAxis=PESI_AfterMarch232019Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementScenarioAxis=PESI_AfterMarch232019Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VariableRateAxis=us-gaap_PrimeRateMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VariableRateAxis=us-gaap_PrimeRateMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=PESI_AmendmentToTheRevisedLoanAgreementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=PESI_AmendmentToTheRevisedLoanAgreementMember</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>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>61
<FILENAME>R50.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
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<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6802013312">
<tr>
<th class="tl" colspan="2" rowspan="1"><div style="width: 200px;"><strong>Long-term Debt - Schedule of Long-term Debt (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</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_LongTermDebtAndCapitalLeaseObligations', window );">Total debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 3,551<span></span>
</td>
<td class="nump">$ 3,847<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtCurrent', window );">Less current portion of long-term debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,184<span></span>
</td>
<td class="nump">1,184<span></span>
</td>
</tr>
<tr class="re">
<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</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">2,367<span></span>
</td>
<td class="nump">2,663<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=PESI_RevolvingCreditMember', window );">Revolving Credit [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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 );">Long-term debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=PESI_TermLoanMember', window );">Term Loan [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebt', window );">Long-term debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="nump">$ 3,551<span></span>
</td>
<td class="nump">$ 3,847<span></span>
</td>
</tr>
<tr><td colspan="4"></td></tr>
<tr><td colspan="4"><table class="outerFootnotes" width="100%">
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">Our revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">Net of debt issuance costs of ($107,000) and ($115,000) at March 31, 2018 and December 31, 2017, respectively.</td>
</tr>
</table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_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/presentationRef<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=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6876686&amp;loc=d3e534808-122878<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&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_LongTermDebtAndCapitalLeaseObligations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 long-term debt and capital lease obligation 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://www.xbrl.org/2003/role/presentationRef<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=6877327&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_LongTermDebtAndCapitalLeaseObligations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19,20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount 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://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=PESI_RevolvingCreditMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=PESI_RevolvingCreditMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=PESI_TermLoanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=PESI_TermLoanMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<DOCUMENT>
<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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<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807277712">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Long-term Debt - Schedule of Long-term Debt (Details) (Parenthetical) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</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_DeferredFinanceCostsNet', window );">Debt issuance costs net</a></td>
<td class="nump">$ 107<span></span>
</td>
<td class="nump">$ 115<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=PESI_RevolvingCreditMember', window );">Revolving Credit [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentMaturityDate', window );">Debt due date</a></td>
<td class="text">Mar. 24,  2021<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=PESI_TermLoanMember', window );">Term Loan [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentMaturityDate', window );">Debt due date</a></td>
<td class="text">Mar. 24,  2021<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_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="nump">5.00%<span></span>
</td>
<td class="nump">5.00%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentPeriodicPaymentPrincipal', window );">Principal amount</a></td>
<td class="nump">$ 102<span></span>
</td>
<td class="nump">$ 102<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=64930785&amp;loc=d3e28551-108399<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateEffectivePercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_DebtInstrumentMaturityDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_DebtInstrumentMaturityDate</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentPeriodicPaymentPrincipal">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 applied to principal.</p></div>
<a 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 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=6877327&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_DebtInstrumentPeriodicPaymentPrincipal</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</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_DeferredFinanceCostsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=64930785&amp;loc=d3e28555-108399<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&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_DeferredFinanceCostsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=PESI_RevolvingCreditMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=PESI_RevolvingCreditMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=PESI_TermLoanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=PESI_TermLoanMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>63
<FILENAME>R52.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6665888256">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>East Tennessee Materials and Energy Corporation (&#8220;M&amp;EC&#8221;) (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Dec. 31, 2017</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_AssetRetirementObligation', window );">Accrued liabilities</a></td>
<td class="nump">$ 1,864<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,791<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SalesRevenueNet', window );">Revenues</a></td>
<td class="nump">12,658<span></span>
</td>
<td class="nump">$ 12,707<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_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=PESI_EastTennesseeMaterialsAndEnergyCorporationMember', window );">East Tennessee Materials and Energy Corporation [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SalesRevenueNet', window );">Revenues</a></td>
<td class="nump">$ 56<span></span>
</td>
<td class="nump">$ 3,379<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_AssetRetirementObligation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6392692&amp;loc=d3e7535-110849<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetRetirementObligation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_SalesRevenueNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SalesRevenueNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=PESI_EastTennesseeMaterialsAndEnergyCorporationMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=PESI_EastTennesseeMaterialsAndEnergyCorporationMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>64
<FILENAME>R53.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6802146736">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>East Tennessee Materials and Energy Corporation (&#8220;M&amp;EC&#8221;) - Schedule of Change in Asset Retirement Obligation (Details)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2018 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetRetirementObligationDisclosureAbstract', window );"><strong>Asset Retirement Obligation Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetRetirementObligation', window );">Balance as of December 31, 2017</a></td>
<td class="nump">$ 2,791<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetRetirementObligationAccretionExpense', window );">Accretion expense</a></td>
<td class="nump">19<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetRetirementObligationLiabilitiesSettled', window );">Payments</a></td>
<td class="num">(946)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetRetirementObligation', window );">Balance as of March 31, 2018</a></td>
<td class="nump">$ 1,864<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_AssetRetirementObligation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6392692&amp;loc=d3e7535-110849<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetRetirementObligation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_AssetRetirementObligationAccretionExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=6392692&amp;loc=d3e7535-110849<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6392676&amp;loc=d3e7480-110848<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetRetirementObligationAccretionExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_AssetRetirementObligationDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AssetRetirementObligationDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-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_AssetRetirementObligationLiabilitiesSettled">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6392692&amp;loc=d3e7535-110849<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetRetirementObligationLiabilitiesSettled</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>65
<FILENAME>R54.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6796245360">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Commitments and Contingencies (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2003</div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Dec. 31, 2017</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_InterestIncomeOther', window );">Interest income, other</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 49<span></span>
</td>
<td class="nump">$ 35<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_LettersOfCreditOutstandingAmount', window );">Letters of credit outstanding, amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,660<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_BondOutstanding', window );">Bond outstanding</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">8,767<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_CounterpartyNameAxis=PESI_AmericanInternationalGroupIncMember', window );">American International Group, Inc [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_PeriodOfFiniteRiskInsurancePolicy', window );">Period of finite risk insurance policy</a></td>
<td class="text">25 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_MaximumAllowableCoverageOfInsurancePolicy', window );">Maximum allowable coverage of insurance policy</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">39,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy', window );">Financial assurance coverage amount under insurance policy</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">29,911<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_SinkingFundRelatedToInsurancePolicy', window );">Sinking fund related to insurance policy</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">15,726<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 15,676<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_InterestEarnedOnSinkingFund', window );">Interest earned on sinking fund</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,255<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,205<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeOther', window );">Interest income, other</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 50<span></span>
</td>
<td class="nump">$ 27<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_InsurersObligationToEntityOnTerminationOfContract', window );">Insurers obligation to entity on termination of contract</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_BondOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total amount of the bonds outstanding as of the reporting date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_BondOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the financial assurance coverage amount under insurance policy.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_FinancialAssuranceCoverageAmountUnderInsurancePolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_InsurersObligationToEntityOnTerminationOfContract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Insurer's obligation to entity on termination of contract in terms of percentage of sinking fund.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_InsurersObligationToEntityOnTerminationOfContract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_InterestEarnedOnSinkingFund">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the interest earned on sinking fund.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_InterestEarnedOnSinkingFund</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_MaximumAllowableCoverageOfInsurancePolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Maximum allowable coverage of insurance policy against annual inflation and other performance and surety bond requirements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_MaximumAllowableCoverageOfInsurancePolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_PeriodOfFiniteRiskInsurancePolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the period of finite risk insurance policy.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_PeriodOfFiniteRiskInsurancePolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_SinkingFundRelatedToInsurancePolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the sinking fund related to the insurance policy.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_SinkingFundRelatedToInsurancePolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestIncomeOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of interest income earned from interest bearing assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestIncomeOther</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LettersOfCreditOutstandingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LettersOfCreditOutstandingAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CounterpartyNameAxis=PESI_AmericanInternationalGroupIncMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CounterpartyNameAxis=PESI_AmericanInternationalGroupIncMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<DESCRIPTION>IDEA: XBRL DOCUMENT
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<head>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6801403728">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Discontinued Operations (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>May 31, 2016</div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Dec. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity', window );">Loss from discontinued operations</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 157,000<span></span>
</td>
<td class="nump">$ 131,000<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_DiscontinuedOperationTaxEffectOfDiscontinuedOperation', window );">Tax effect of discontinued operation</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent', window );">Current assets related to discontinued operations</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">94,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 89,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent', window );">Other assets related to discontinued operations</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">176,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 195,000<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LegalEntityAxis=PESI_PermaFixOfMichiganIncMember', window );">Perma-Fix of Michigan, Inc. [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing', window );">Disposal group, including discontinued operation, consideration, after closing</a></td>
<td class="nump">$ 375,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment', window );">Disposal group, including discontinued operation, consideration, installment payment</a></td>
<td class="nump">$ 7,250<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance', window );">Disposal group, including discontinued operation, consideration, remaining balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">250,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent', window );">Current assets related to discontinued operations</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">74,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent', window );">Other assets related to discontinued operations</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 176,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as assets attributed to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer, or assets retained by the Company upon divestiture of facility.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 consideration received or receivable for the disposal of assets and liabilities, including discontinued operation, after closing.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationAfterClosing</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 installment payment will received or receivable for the disposal of assets and liabilities, including discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationInstallmentPayment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 consideration receivable for the disposal of assets and liabilities, including discontinued operation, that remains as of a specific date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationConsiderationRemainingBalance</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as other assets attributable to discontinued operations not held for sale,</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=84230637&amp;loc=d3e32672-109319<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721525-107759<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721523-107759<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=d3e1361-107760<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=79507043&amp;loc=d3e38679-109324<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721675-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e1012-107759<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721675-107760<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721525-107759<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=SL51721523-107759<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e957-107759<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=65878427&amp;loc=d3e1012-107759<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=d3e1361-107760<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LegalEntityAxis=PESI_PermaFixOfMichiganIncMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LegalEntityAxis=PESI_PermaFixOfMichiganIncMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6800865712">
<tr>
<th class="tl" colspan="2" rowspan="1"><div style="width: 200px;"><strong>Discontinued Operations - Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract', window );"><strong>Discontinued Operations and Disposal Groups [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale', window );">Other assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 94<span></span>
</td>
<td class="nump">$ 89<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale', window );">Total current assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">94<span></span>
</td>
<td class="nump">89<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent', window );">Property, plant and equipment, net</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">81<span></span>
</td>
<td class="nump">81<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent', window );">Other assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">176<span></span>
</td>
<td class="nump">195<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent', window );">Total long-term assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">257<span></span>
</td>
<td class="nump">276<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale', window );">Total assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">351<span></span>
</td>
<td class="nump">365<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale', window );">Accounts payable</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">11<span></span>
</td>
<td class="nump">8<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities', window );">Accrued expenses and other liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">262<span></span>
</td>
<td class="nump">265<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities', window );">Environmental liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">619<span></span>
</td>
<td class="nump">632<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale', window );">Total current liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">892<span></span>
</td>
<td class="nump">905<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale', window );">Closure liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">122<span></span>
</td>
<td class="nump">120<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities', window );">Environmental liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">229<span></span>
</td>
<td class="nump">239<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale', window );">Total long-term liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">351<span></span>
</td>
<td class="nump">359<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale', window );">Total liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 1,243<span></span>
</td>
<td class="nump">$ 1,264<span></span>
</td>
</tr>
<tr><td colspan="3"></td></tr>
<tr><td colspan="3"><table class="outerFootnotes" width="100%"><tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">net of accumulated depreciation of $10,000 for each period presented.</td>
</tr></table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as current assets attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as environmental liabilities attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as accounts payable and accrued liabilities attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as accounts payable attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as current and noncurrent assets attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as assets attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as other assets attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as other assets attributable to discontinued operations not held for sale,</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsNotHeldForSaleNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as property, plant and equipment attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as liabilities attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as liabilities attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as liabilities attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents closure liabilities of discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as environmental liabilities attributable to discontinued operations not held for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>68
<FILENAME>R57.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6634881008">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Discontinued Operations - Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details) (Parenthetical) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract', window );"><strong>Discontinued Operations and Disposal Groups [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization', window );">Accumulated depreciation</a></td>
<td class="nump">$ 10<span></span>
</td>
<td class="nump">$ 10<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=SL51721673-107760<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>69
<FILENAME>R58.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6635031968">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Operating Segments (Details Narrative)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2018 </div>
<div>Integer</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_SegmentReportingAbstract', window );"><strong>Segment Reporting [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_NumberOfReportableSegments', window );">Number of reportable segments</a></td>
<td class="nump">3<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NumberOfReportableSegments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>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_NumberOfReportableSegments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SegmentReportingAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_SegmentReportingAbstract</td>
</tr>
<tr>
<td style="padding-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>70
<FILENAME>R59.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6814704560">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Operating Segments - Schedule of Segment Reporting Information (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</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_SalesRevenueNet', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 12,658<span></span>
</td>
<td class="nump">$ 12,707<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">3,321<span></span>
</td>
<td class="nump">2,719<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">232<span></span>
</td>
<td class="nump">389<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">49<span></span>
</td>
<td class="nump">35<span></span>
</td>
</tr>
<tr class="ro">
<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="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(53)<span></span>
</td>
<td class="num">(100)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(9)<span></span>
</td>
<td class="num">(9)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">372<span></span>
</td>
<td class="nump">1,155<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">304<span></span>
</td>
<td class="num">(594)<span></span>
</td>
</tr>
<tr class="ro">
<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="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(51)<span></span>
</td>
<td class="num">(81)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">253<span></span>
</td>
<td class="num">(675)<span></span>
</td>
</tr>
<tr class="ro">
<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 );">Expenditures for segment assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">248<span></span>
</td>
<td class="nump">22<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember', window );">Treatment [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SalesRevenueNet', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">8,959<span></span>
</td>
<td class="nump">10,034<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">213<span></span>
</td>
<td class="nump">16<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">2,780<span></span>
</td>
<td class="nump">2,687<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">114<span></span>
</td>
<td class="nump">181<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<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="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="num">(8)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">240<span></span>
</td>
<td class="nump">1,009<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,744<span></span>
</td>
<td class="nump">1,602<span></span>
</td>
</tr>
<tr class="re">
<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="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(51)<span></span>
</td>
<td class="num">(80)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,693<span></span>
</td>
<td class="nump">1,522<span></span>
</td>
</tr>
<tr class="re">
<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 );">Expenditures for segment assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">220<span></span>
</td>
<td class="nump">15<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_ServicesMember', window );">Services [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SalesRevenueNet', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">3,699<span></span>
</td>
<td class="nump">2,673<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">14<span></span>
</td>
<td class="nump">3<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">541<span></span>
</td>
<td class="nump">32<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1)<span></span>
</td>
<td class="num">(1)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">123<span></span>
</td>
<td class="nump">136<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(86)<span></span>
</td>
<td class="num">(707)<span></span>
</td>
</tr>
<tr class="ro">
<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="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(86)<span></span>
</td>
<td class="num">(707)<span></span>
</td>
</tr>
<tr class="ro">
<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 );">Expenditures for segment assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">25<span></span>
</td>
<td class="nump">7<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_MedicalMember', window );">Medical [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SalesRevenueNet', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">100<span></span>
</td>
<td class="nump">200<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<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="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(100)<span></span>
</td>
<td class="num">(200)<span></span>
</td>
</tr>
<tr class="re">
<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="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(100)<span></span>
</td>
<td class="num">(200)<span></span>
</td>
</tr>
<tr class="re">
<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 );">Expenditures for segment assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=PESI_SegmentsTotalMember', window );">Segments Total [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SalesRevenueNet', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">12,658<span></span>
</td>
<td class="nump">12,707<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">227<span></span>
</td>
<td class="nump">19<span></span>
</td>
</tr>
<tr class="re">
<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="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">3,321<span></span>
</td>
<td class="nump">2,719<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">214<span></span>
</td>
<td class="nump">381<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1)<span></span>
</td>
<td class="num">(9)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">363<span></span>
</td>
<td class="nump">1,145<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,558<span></span>
</td>
<td class="nump">695<span></span>
</td>
</tr>
<tr class="ro">
<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="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(51)<span></span>
</td>
<td class="num">(80)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,507<span></span>
</td>
<td class="nump">615<span></span>
</td>
</tr>
<tr class="ro">
<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 );">Expenditures for segment assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">245<span></span>
</td>
<td class="nump">22<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateMember', window );">Corporate [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SalesRevenueNet', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text"> <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_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">18<span></span>
</td>
<td class="nump">8<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">49<span></span>
</td>
<td class="nump">35<span></span>
</td>
</tr>
<tr class="re">
<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="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="num">(52)<span></span>
</td>
<td class="num">(91)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="num">(9)<span></span>
</td>
<td class="num">(9)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">9<span></span>
</td>
<td class="nump">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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="num">(1,254)<span></span>
</td>
<td class="num">(1,289)<span></span>
</td>
</tr>
<tr class="re">
<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="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text"> <span></span>
</td>
<td class="num">(1)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="num">(1,254)<span></span>
</td>
<td class="num">(1,290)<span></span>
</td>
</tr>
<tr class="re">
<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 );">Expenditures for segment assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">$ 3<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr><td colspan="4"></td></tr>
<tr><td colspan="4"><table class="outerFootnotes" width="100%"><tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">Amounts reflect the activity for corporate headquarters not included in the segment information.</td>
</tr></table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_IntercompanyRevenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The intercompany revenue reported for the transaction within the fellow concerns of the entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_IntercompanyRevenues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DepreciationAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=98514028&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DepreciationAndAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_FinancingInterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This element represents interest incurred for borrowed money which was used to produce goods or render services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<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=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancingInterestExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<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=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GrossProfit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.</p></div>
<a 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 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)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=96868048&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (a),(b)<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=d3e32639-109319<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=26873400&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_IncomeTaxExpenseBenefit</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>duration</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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6450988&amp;loc=d3e26243-108391<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=64930785&amp;loc=d3e28555-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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>
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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>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestIncomeOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of interest income earned from interest bearing assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestIncomeOther</td>
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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>
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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_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=98514028&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquirePropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ResearchAndDevelopmentExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ResearchAndDevelopmentExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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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_SalesRevenueNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SalesRevenueNet</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember</td>
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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_StatementBusinessSegmentsAxis=PESI_ServicesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=PESI_ServicesMember</td>
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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_StatementBusinessSegmentsAxis=PESI_MedicalMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementBusinessSegmentsAxis=PESI_SegmentsTotalMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=PESI_SegmentsTotalMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateMember</td>
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<head>
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6801178384">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Income Taxes (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxDisclosureAbstract', window );"><strong>Income Tax Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax (benefit) expense</a></td>
<td class="num">$ (51)<span></span>
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<td class="num">$ (81)<span></span>
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<td class="num">(16.80%)<span></span>
</td>
<td class="num">(13.60%)<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_EffectiveIncomeTaxRateContinuingOperations">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 13<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=d3e32698-109319<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(h)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=d3e32687-109319<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EffectiveIncomeTaxRateContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_IncomeTaxDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_IncomeTaxDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (a),(b)<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=d3e32639-109319<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=26873400&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_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>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>72
<FILENAME>R61.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6799621456">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Management Incentive Plans (&#8220;MIPs&#8221;) (Details Narrative)<br></strong></div></th>
<th class="th">
<div>Jan. 18, 2018 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TitleOfIndividualAxis=us-gaap_ChiefExecutiveOfficerMember', window );">CEO [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage', window );">Deferred compensation arrangement with individual, cash awards granted, minimum, percentage</a></td>
<td class="nump">5.00%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage', window );">Deferred compensation arrangement with individual, cash awards granted, maximum, percentage</a></td>
<td class="nump">100.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount', window );">Deferred compensation arrangement with individual, cash awards granted, minimum, amount</a></td>
<td class="nump">$ 13,350<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount', window );">Deferred compensation arrangement with individual, cash awards granted, maximum, amount</a></td>
<td class="nump">$ 267,000<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TitleOfIndividualAxis=us-gaap_ChiefFinancialOfficerMember', window );">CFO [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage', window );">Deferred compensation arrangement with individual, cash awards granted, minimum, percentage</a></td>
<td class="nump">5.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage', window );">Deferred compensation arrangement with individual, cash awards granted, maximum, percentage</a></td>
<td class="nump">100.00%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount', window );">Deferred compensation arrangement with individual, cash awards granted, minimum, amount</a></td>
<td class="nump">$ 11,475<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount', window );">Deferred compensation arrangement with individual, cash awards granted, maximum, amount</a></td>
<td class="nump">$ 229,494<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TitleOfIndividualAxis=us-gaap_ExecutiveVicePresidentMember', window );">EVP [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage', window );">Deferred compensation arrangement with individual, cash awards granted, minimum, percentage</a></td>
<td class="nump">5.00%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage', window );">Deferred compensation arrangement with individual, cash awards granted, maximum, percentage</a></td>
<td class="nump">100.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount', window );">Deferred compensation arrangement with individual, cash awards granted, minimum, amount</a></td>
<td class="nump">$ 11,170<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount', window );">Deferred compensation arrangement with individual, cash awards granted, maximum, amount</a></td>
<td class="nump">$ 223,400<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 cash incentive payable under Management Incentive Plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 cash incentive payable expressed as a percentage of the individual base salary.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMaximumPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Minimum cash incentive payable under Management Incentive Plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Minimum cash incentive payable expressed as a percentage of the individual base salary.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_DeferredCompensationArrangementWithIndividualCashAwardsGrantedMinimumPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_TitleOfIndividualAxis=us-gaap_ChiefExecutiveOfficerMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TitleOfIndividualAxis=us-gaap_ChiefExecutiveOfficerMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TitleOfIndividualAxis=us-gaap_ChiefFinancialOfficerMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TitleOfIndividualAxis=us-gaap_ChiefFinancialOfficerMember</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_TitleOfIndividualAxis=us-gaap_ExecutiveVicePresidentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TitleOfIndividualAxis=us-gaap_ExecutiveVicePresidentMember</td>
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<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>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>73
<FILENAME>R62.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.8.0.1</span><table class="report" border="0" cellspacing="2" id="idp6814602768">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Subsequent Events (Details Narrative) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Apr. 24, 2018</div></th>
<th class="th"><div>Apr. 02, 2018</div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
<th class="th"><div>Dec. 31, 2017</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_PreferredStockSharesOutstanding', window );">Preferred stock, shares outstanding</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember', window );">Subsequent Event [Member] | Series B Preferred Stock [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<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_PreferredStockLiquidationPreference', window );">Liquidation preference per share</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1.00<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_PreferredStockRedemptionPricePerShare', window );">Purchase price of preferred stock</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1.00<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_PreferredStockDividendRatePercentage', window );">Cumulative dividends rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">5.00%<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_ConversionOfStockDescription', window );">Conversion of stock, description</a></td>
<td class="text">On April 24, 2018, the Company announced a private exchange offer (&#147;Exchange Offer&#148;), to all holders of the M&EC Series B Preferred Stock , to exchange, for every share of Series B Preferred Stock tendered, (a) 0.1050805 shares of newly issued common stock of the Company, par value $.001 per share (&#147;Common Stock&#148;), and (b) cash in lieu of fractional shares of Common Stock that would otherwise be issuable to the tendering holder of Series B Preferred Stock, in an amount equal to such fractional share of Common Stock multiplied by the closing price per share of the Common Stock on the last trading day immediately preceding the expiration date of the Exchange Offer. The Exchange Offer is being made on an all-or-none basis, for all 1,284,730 shares of Series B Preferred Stock outstanding and has an expiration date of May 30, 2018.<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesOutstanding', window );">Preferred stock, shares outstanding</a></td>
<td class="nump">1,284,730<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockVotingRights', window );">Voting capital stock</a></td>
<td class="text">The Company owns 100% of the voting capital stock of M&EC.<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends', window );">Quarterly cash dividends and cumulative accrued and unpaid dividends</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,011<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_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember', window );">Subsequent Event [Member] | Series B Preferred Stock [Member] | Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<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_SaleOfStockNumberOfSharesIssuedInTransaction', window );">Number of common shares issued</a></td>
<td class="nump">135,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</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>Quarterly cash dividends and cumulative accrued and unpaid dividends.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">PESI_QuarterlyCashDividendsAndCumulativeAccruedAndUnpaidDividends</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>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockVotingRights">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=84159872&amp;loc=d3e21475-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockVotingRights</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
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<tr>
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<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique description of a noncash or part noncash stock conversion. The description would be expected to include sufficient information to provide an understanding of the nature and purpose of the conversion. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments 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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=98513485&amp;loc=d3e4313-108586<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=98513485&amp;loc=d3e4304-108586<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=98513485&amp;loc=d3e4332-108586<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_ConversionOfStockDescription</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</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_PreferredStockDividendRatePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 percentage rate used to calculate dividend payments on preferred stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockDividendRatePercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_PreferredStockLiquidationPreference">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.</p></div>
<a 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 FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=84159872&amp;loc=d3e21475-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=84159872&amp;loc=d3e21484-112644<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<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(d)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<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.(d)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&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_PreferredStockLiquidationPreference</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num: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_PreferredStockRedemptionPricePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=84159872&amp;loc=d3e21475-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=84159872&amp;loc=d3e21564-112644<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=84159872&amp;loc=d3e21488-112644<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_PreferredStockRedemptionPricePerShare</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>num: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_PreferredStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<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=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesOutstanding</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli: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_SaleOfStockNumberOfSharesIssuedInTransaction">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.</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_SaleOfStockNumberOfSharesIssuedInTransaction</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
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</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_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_SeriesBPreferredStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<SEQUENCE>74
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
